257666640

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{191}}^1$

素因数の和:298

約数の個数: 320

約数和(自身を含む): 1014792192

約数和(自身を除く): 757125552

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 16, 20, 21, 22, 24, 28, 30, 33, 35, 40, 42, 44, 48, 55, 56, 60, 66, 70, 73, 77, 80, 84, 88, 105, 110, 112, 120, 132, 140, 146, 154, 165, 168, 176, 191, 210, 219, 220, 231, 240, 264, 280, 292, 308, 330, 336, 365, 382, 385, 420, 438, 440, 462, 511, 528, 560, 573, 584, 616, 660, 730, 764, 770, 803, 840, 876, 880, 924, 955, 1022, 1095, 1146, 1155, 1168, 1232, 1320, 1337, 1460, 1528, 1533, 1540, 1606, 1680, 1752, 1848, 1910, 2044, 2101, 2190, 2292, 2310, 2409, 2555, 2640, 2674, 2865, 2920, 3056, 3066, 3080, 3212, 3504, 3696, 3820, 4011, 4015, 4088, 4202, 4380, 4584, 4620, 4818, 5110, 5348, 5621, 5730, 5840, 6132, 6160, 6303, 6424, 6685, 7640, 7665, 8022, 8030, 8176, 8404, 8760, 9168, 9240, 9636, 10220, 10505, 10696, 11242, 11460, 12045, 12264, 12606, 12848, 13370, 13943, 14707, 15280, 15330, 16044, 16060, 16808, 16863, 17520, 18480, 19272, 20055, 20440, 21010, 21392, 22484, 22920, 24090, 24528, 25212, 26740, 27886, 28105, 29414, 30660, 31515, 32088, 32120, 33616, 33726, 38544, 40110, 40880, 41829, 42020, 44121, 44968, 45840, 48180, 50424, 53480, 55772, 56210, 58828, 61320, 63030, 64176, 64240, 67452, 69715, 73535, 80220, 83658, 84040, 84315, 88242, 89936, 96360, 97601, 100848, 106960, 111544, 112420, 117656, 122640, 126060, 134904, 139430, 147070, 153373, 160440, 167316, 168080, 168630, 176484, 192720, 195202, 209145, 220605, 223088, 224840, 235312, 252120, 269808, 278860, 292803, 294140, 306746, 320880, 334632, 337260, 352968, 390404, 418290, 441210, 449680, 460119, 488005, 504240, 557720, 585606, 588280, 613492, 669264, 674520, 705936, 766865, 780808, 836580, 882420, 920238, 976010, 1073611, 1115440, 1171212, 1176560, 1226984, 1349040, 1464015, 1533730, 1561616, 1673160, 1764840, 1840476, 1952020, 2147222, 2300595, 2342424, 2453968, 2928030, 3067460, 3220833, 3346320, 3529680, 3680952, 3904040, 4294444, 4601190, 4684848, 5368055, 5856060, 6134920, 6441666, 7361904, 7808080, 8588888, 9202380, 10736110, 11712120, 12269840, 12883332, 16104165, 17177776, 18404760, 21472220, 23424240, 25766664, 32208330, 36809520, 42944440, 51533328, 64416660, 85888880, 128833320, 257666640]

約数ペア:

[(1, 257666640), (2, 128833320), (3, 85888880), (4, 64416660), (5, 51533328), (6, 42944440), (7, 36809520), (8, 32208330), (10, 25766664), (11, 23424240), (12, 21472220), (14, 18404760), (15, 17177776), (16, 16104165), (20, 12883332), (21, 12269840), (22, 11712120), (24, 10736110), (28, 9202380), (30, 8588888), (33, 7808080), (35, 7361904), (40, 6441666), (42, 6134920), (44, 5856060), (48, 5368055), (55, 4684848), (56, 4601190), (60, 4294444), (66, 3904040), (70, 3680952), (73, 3529680), (77, 3346320), (80, 3220833), (84, 3067460), (88, 2928030), (105, 2453968), (110, 2342424), (112, 2300595), (120, 2147222), (132, 1952020), (140, 1840476), (146, 1764840), (154, 1673160), (165, 1561616), (168, 1533730), (176, 1464015), (191, 1349040), (210, 1226984), (219, 1176560), (220, 1171212), (231, 1115440), (240, 1073611), (264, 976010), (280, 920238), (292, 882420), (308, 836580), (330, 780808), (336, 766865), (365, 705936), (382, 674520), (385, 669264), (420, 613492), (438, 588280), (440, 585606), (462, 557720), (511, 504240), (528, 488005), (560, 460119), (573, 449680), (584, 441210), (616, 418290), (660, 390404), (730, 352968), (764, 337260), (770, 334632), (803, 320880), (840, 306746), (876, 294140), (880, 292803), (924, 278860), (955, 269808), (1022, 252120), (1095, 235312), (1146, 224840), (1155, 223088), (1168, 220605), (1232, 209145), (1320, 195202), (1337, 192720), (1460, 176484), (1528, 168630), (1533, 168080), (1540, 167316), (1606, 160440), (1680, 153373), (1752, 147070), (1848, 139430), (1910, 134904), (2044, 126060), (2101, 122640), (2190, 117656), (2292, 112420), (2310, 111544), (2409, 106960), (2555, 100848), (2640, 97601), (2674, 96360), (2865, 89936), (2920, 88242), (3056, 84315), (3066, 84040), (3080, 83658), (3212, 80220), (3504, 73535), (3696, 69715), (3820, 67452), (4011, 64240), (4015, 64176), (4088, 63030), (4202, 61320), (4380, 58828), (4584, 56210), (4620, 55772), (4818, 53480), (5110, 50424), (5348, 48180), (5621, 45840), (5730, 44968), (5840, 44121), (6132, 42020), (6160, 41829), (6303, 40880), (6424, 40110), (6685, 38544), (7640, 33726), (7665, 33616), (8022, 32120), (8030, 32088), (8176, 31515), (8404, 30660), (8760, 29414), (9168, 28105), (9240, 27886), (9636, 26740), (10220, 25212), (10505, 24528), (10696, 24090), (11242, 22920), (11460, 22484), (12045, 21392), (12264, 21010), (12606, 20440), (12848, 20055), (13370, 19272), (13943, 18480), (14707, 17520), (15280, 16863), (15330, 16808), (16044, 16060)]