79317920

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{241}}^1$

素因数の和:295

約数の個数: 144

約数和(自身を含む): 218993544

約数和(自身を除く): 139675624

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 17, 20, 22, 32, 34, 40, 44, 55, 68, 80, 85, 88, 110, 121, 136, 160, 170, 176, 187, 220, 241, 242, 272, 340, 352, 374, 440, 482, 484, 544, 605, 680, 748, 880, 935, 964, 968, 1205, 1210, 1360, 1496, 1760, 1870, 1928, 1936, 2057, 2410, 2420, 2651, 2720, 2992, 3740, 3856, 3872, 4097, 4114, 4820, 4840, 5302, 5984, 7480, 7712, 8194, 8228, 9640, 9680, 10285, 10604, 13255, 14960, 16388, 16456, 19280, 19360, 20485, 20570, 21208, 26510, 29161, 29920, 32776, 32912, 38560, 40970, 41140, 42416, 45067, 53020, 58322, 65552, 65824, 81940, 82280, 84832, 90134, 106040, 116644, 131104, 145805, 163880, 164560, 180268, 212080, 225335, 233288, 291610, 327760, 329120, 360536, 424160, 450670, 466576, 495737, 583220, 655520, 721072, 901340, 933152, 991474, 1166440, 1442144, 1802680, 1982948, 2332880, 2478685, 3605360, 3965896, 4665760, 4957370, 7210720, 7931792, 9914740, 15863584, 19829480, 39658960, 79317920]

約数ペア:

[(1, 79317920), (2, 39658960), (4, 19829480), (5, 15863584), (8, 9914740), (10, 7931792), (11, 7210720), (16, 4957370), (17, 4665760), (20, 3965896), (22, 3605360), (32, 2478685), (34, 2332880), (40, 1982948), (44, 1802680), (55, 1442144), (68, 1166440), (80, 991474), (85, 933152), (88, 901340), (110, 721072), (121, 655520), (136, 583220), (160, 495737), (170, 466576), (176, 450670), (187, 424160), (220, 360536), (241, 329120), (242, 327760), (272, 291610), (340, 233288), (352, 225335), (374, 212080), (440, 180268), (482, 164560), (484, 163880), (544, 145805), (605, 131104), (680, 116644), (748, 106040), (880, 90134), (935, 84832), (964, 82280), (968, 81940), (1205, 65824), (1210, 65552), (1360, 58322), (1496, 53020), (1760, 45067), (1870, 42416), (1928, 41140), (1936, 40970), (2057, 38560), (2410, 32912), (2420, 32776), (2651, 29920), (2720, 29161), (2992, 26510), (3740, 21208), (3856, 20570), (3872, 20485), (4097, 19360), (4114, 19280), (4820, 16456), (4840, 16388), (5302, 14960), (5984, 13255), (7480, 10604), (7712, 10285), (8194, 9680), (8228, 9640)]