408703490

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{337}}^1\times {\mathrm{491}}^1$

素因数の和:867

約数の個数: 64

約数和(自身を含む): 838131840

約数和(自身を除く): 429428350

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 65, 95, 130, 190, 247, 337, 491, 494, 674, 982, 1235, 1685, 2455, 2470, 3370, 4381, 4910, 6383, 6403, 8762, 9329, 12766, 12806, 18658, 21905, 31915, 32015, 43810, 46645, 63830, 64030, 83239, 93290, 121277, 165467, 166478, 242554, 330934, 416195, 606385, 827335, 832390, 1212770, 1654670, 2151071, 3143873, 4302142, 6287746, 10755355, 15719365, 21510710, 31438730, 40870349, 81740698, 204351745, 408703490]

約数ペア:

[(1, 408703490), (2, 204351745), (5, 81740698), (10, 40870349), (13, 31438730), (19, 21510710), (26, 15719365), (38, 10755355), (65, 6287746), (95, 4302142), (130, 3143873), (190, 2151071), (247, 1654670), (337, 1212770), (491, 832390), (494, 827335), (674, 606385), (982, 416195), (1235, 330934), (1685, 242554), (2455, 166478), (2470, 165467), (3370, 121277), (4381, 93290), (4910, 83239), (6383, 64030), (6403, 63830), (8762, 46645), (9329, 43810), (12766, 32015), (12806, 31915), (18658, 21905)]