399919520

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{227}}^1$

素因数の和:284

約数の個数: 288

約数和(自身を含む): 1283796864

約数和(自身を除く): 883877344

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 13, 14, 16, 20, 22, 26, 28, 32, 35, 40, 44, 52, 55, 56, 65, 70, 77, 80, 88, 91, 104, 110, 112, 121, 130, 140, 143, 154, 160, 176, 182, 208, 220, 224, 227, 242, 260, 280, 286, 308, 352, 364, 385, 416, 440, 454, 455, 484, 520, 560, 572, 605, 616, 715, 728, 770, 847, 880, 908, 910, 968, 1001, 1040, 1120, 1135, 1144, 1210, 1232, 1430, 1456, 1540, 1573, 1589, 1694, 1760, 1816, 1820, 1936, 2002, 2080, 2270, 2288, 2420, 2464, 2497, 2860, 2912, 2951, 3080, 3146, 3178, 3388, 3632, 3640, 3872, 4004, 4235, 4540, 4576, 4840, 4994, 5005, 5720, 5902, 6160, 6292, 6356, 6776, 7264, 7280, 7865, 7945, 8008, 8470, 9080, 9680, 9988, 10010, 11011, 11440, 11804, 12320, 12485, 12584, 12712, 13552, 14560, 14755, 15730, 15890, 16016, 16940, 17479, 18160, 19360, 19976, 20020, 20657, 22022, 22880, 23608, 24970, 25168, 25424, 27104, 27467, 29510, 31460, 31780, 32032, 32461, 33880, 34958, 36320, 39952, 40040, 41314, 44044, 47216, 49940, 50336, 50848, 54934, 55055, 59020, 62920, 63560, 64922, 67760, 69916, 79904, 80080, 82628, 87395, 88088, 94432, 99880, 103285, 109868, 110110, 118040, 125840, 127120, 129844, 135520, 137335, 139832, 160160, 162305, 165256, 174790, 176176, 192269, 199760, 206570, 219736, 220220, 227227, 236080, 251680, 254240, 259688, 274670, 279664, 324610, 330512, 349580, 352352, 357071, 384538, 399520, 413140, 439472, 440440, 454454, 472160, 519376, 549340, 559328, 649220, 661024, 699160, 714142, 769076, 826280, 878944, 880880, 908908, 961345, 1038752, 1098680, 1136135, 1298440, 1398320, 1428284, 1538152, 1652560, 1761760, 1785355, 1817816, 1922690, 2197360, 2272270, 2499497, 2596880, 2796640, 2856568, 3076304, 3305120, 3570710, 3635632, 3845380, 4394720, 4544540, 4998994, 5193760, 5713136, 6152608, 7141420, 7271264, 7690760, 9089080, 9997988, 11426272, 12497485, 14282840, 15381520, 18178160, 19995976, 24994970, 28565680, 30763040, 36356320, 39991952, 49989940, 57131360, 79983904, 99979880, 199959760, 399919520]

約数ペア:

[(1, 399919520), (2, 199959760), (4, 99979880), (5, 79983904), (7, 57131360), (8, 49989940), (10, 39991952), (11, 36356320), (13, 30763040), (14, 28565680), (16, 24994970), (20, 19995976), (22, 18178160), (26, 15381520), (28, 14282840), (32, 12497485), (35, 11426272), (40, 9997988), (44, 9089080), (52, 7690760), (55, 7271264), (56, 7141420), (65, 6152608), (70, 5713136), (77, 5193760), (80, 4998994), (88, 4544540), (91, 4394720), (104, 3845380), (110, 3635632), (112, 3570710), (121, 3305120), (130, 3076304), (140, 2856568), (143, 2796640), (154, 2596880), (160, 2499497), (176, 2272270), (182, 2197360), (208, 1922690), (220, 1817816), (224, 1785355), (227, 1761760), (242, 1652560), (260, 1538152), (280, 1428284), (286, 1398320), (308, 1298440), (352, 1136135), (364, 1098680), (385, 1038752), (416, 961345), (440, 908908), (454, 880880), (455, 878944), (484, 826280), (520, 769076), (560, 714142), (572, 699160), (605, 661024), (616, 649220), (715, 559328), (728, 549340), (770, 519376), (847, 472160), (880, 454454), (908, 440440), (910, 439472), (968, 413140), (1001, 399520), (1040, 384538), (1120, 357071), (1135, 352352), (1144, 349580), (1210, 330512), (1232, 324610), (1430, 279664), (1456, 274670), (1540, 259688), (1573, 254240), (1589, 251680), (1694, 236080), (1760, 227227), (1816, 220220), (1820, 219736), (1936, 206570), (2002, 199760), (2080, 192269), (2270, 176176), (2288, 174790), (2420, 165256), (2464, 162305), (2497, 160160), (2860, 139832), (2912, 137335), (2951, 135520), (3080, 129844), (3146, 127120), (3178, 125840), (3388, 118040), (3632, 110110), (3640, 109868), (3872, 103285), (4004, 99880), (4235, 94432), (4540, 88088), (4576, 87395), (4840, 82628), (4994, 80080), (5005, 79904), (5720, 69916), (5902, 67760), (6160, 64922), (6292, 63560), (6356, 62920), (6776, 59020), (7264, 55055), (7280, 54934), (7865, 50848), (7945, 50336), (8008, 49940), (8470, 47216), (9080, 44044), (9680, 41314), (9988, 40040), (10010, 39952), (11011, 36320), (11440, 34958), (11804, 33880), (12320, 32461), (12485, 32032), (12584, 31780), (12712, 31460), (13552, 29510), (14560, 27467), (14755, 27104), (15730, 25424), (15890, 25168), (16016, 24970), (16940, 23608), (17479, 22880), (18160, 22022), (19360, 20657), (19976, 20020)]