217980840

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{761}}^1$

素因数の和:824

約数の個数: 256

約数和(自身を含む): 842711040

約数和(自身を除く): 624730200

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 20, 21, 22, 24, 28, 30, 31, 33, 35, 40, 42, 44, 55, 56, 60, 62, 66, 70, 77, 84, 88, 93, 105, 110, 120, 124, 132, 140, 154, 155, 165, 168, 186, 210, 217, 220, 231, 248, 264, 280, 308, 310, 330, 341, 372, 385, 420, 434, 440, 462, 465, 616, 620, 651, 660, 682, 744, 761, 770, 840, 868, 924, 930, 1023, 1085, 1155, 1240, 1302, 1320, 1364, 1522, 1540, 1705, 1736, 1848, 1860, 2046, 2170, 2283, 2310, 2387, 2604, 2728, 3044, 3080, 3255, 3410, 3720, 3805, 4092, 4340, 4566, 4620, 4774, 5115, 5208, 5327, 6088, 6510, 6820, 7161, 7610, 8184, 8371, 8680, 9132, 9240, 9548, 10230, 10654, 11415, 11935, 13020, 13640, 14322, 15220, 15981, 16742, 18264, 19096, 20460, 21308, 22830, 23591, 23870, 25113, 26040, 26635, 28644, 30440, 31962, 33484, 35805, 40920, 41855, 42616, 45660, 47182, 47740, 50226, 53270, 57288, 58597, 63924, 66968, 70773, 71610, 79905, 83710, 91320, 94364, 95480, 100452, 106540, 117194, 117955, 125565, 127848, 141546, 143220, 159810, 165137, 167420, 175791, 188728, 200904, 213080, 234388, 235910, 251130, 259501, 283092, 286440, 292985, 319620, 330274, 334840, 351582, 353865, 468776, 471820, 495411, 502260, 519002, 566184, 585970, 639240, 660548, 703164, 707730, 778503, 825685, 878955, 943640, 990822, 1004520, 1038004, 1171940, 1297505, 1321096, 1406328, 1415460, 1557006, 1651370, 1757910, 1816507, 1981644, 2076008, 2343880, 2477055, 2595010, 2830920, 3114012, 3302740, 3515820, 3633014, 3892515, 3963288, 4954110, 5190020, 5449521, 6228024, 6605480, 7031640, 7266028, 7785030, 9082535, 9908220, 10380040, 10899042, 14532056, 15570060, 18165070, 19816440, 21798084, 27247605, 31140120, 36330140, 43596168, 54495210, 72660280, 108990420, 217980840]

約数ペア:

[(1, 217980840), (2, 108990420), (3, 72660280), (4, 54495210), (5, 43596168), (6, 36330140), (7, 31140120), (8, 27247605), (10, 21798084), (11, 19816440), (12, 18165070), (14, 15570060), (15, 14532056), (20, 10899042), (21, 10380040), (22, 9908220), (24, 9082535), (28, 7785030), (30, 7266028), (31, 7031640), (33, 6605480), (35, 6228024), (40, 5449521), (42, 5190020), (44, 4954110), (55, 3963288), (56, 3892515), (60, 3633014), (62, 3515820), (66, 3302740), (70, 3114012), (77, 2830920), (84, 2595010), (88, 2477055), (93, 2343880), (105, 2076008), (110, 1981644), (120, 1816507), (124, 1757910), (132, 1651370), (140, 1557006), (154, 1415460), (155, 1406328), (165, 1321096), (168, 1297505), (186, 1171940), (210, 1038004), (217, 1004520), (220, 990822), (231, 943640), (248, 878955), (264, 825685), (280, 778503), (308, 707730), (310, 703164), (330, 660548), (341, 639240), (372, 585970), (385, 566184), (420, 519002), (434, 502260), (440, 495411), (462, 471820), (465, 468776), (616, 353865), (620, 351582), (651, 334840), (660, 330274), (682, 319620), (744, 292985), (761, 286440), (770, 283092), (840, 259501), (868, 251130), (924, 235910), (930, 234388), (1023, 213080), (1085, 200904), (1155, 188728), (1240, 175791), (1302, 167420), (1320, 165137), (1364, 159810), (1522, 143220), (1540, 141546), (1705, 127848), (1736, 125565), (1848, 117955), (1860, 117194), (2046, 106540), (2170, 100452), (2283, 95480), (2310, 94364), (2387, 91320), (2604, 83710), (2728, 79905), (3044, 71610), (3080, 70773), (3255, 66968), (3410, 63924), (3720, 58597), (3805, 57288), (4092, 53270), (4340, 50226), (4566, 47740), (4620, 47182), (4774, 45660), (5115, 42616), (5208, 41855), (5327, 40920), (6088, 35805), (6510, 33484), (6820, 31962), (7161, 30440), (7610, 28644), (8184, 26635), (8371, 26040), (8680, 25113), (9132, 23870), (9240, 23591), (9548, 22830), (10230, 21308), (10654, 20460), (11415, 19096), (11935, 18264), (13020, 16742), (13640, 15981), (14322, 15220)]