257295610

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^3\times {\mathrm{13}}^1\times {\mathrm{1487}}^1$

素因数の和:1540

約数の個数: 64

約数和(自身を含む): 548964864

約数和(自身を除く): 291669254

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 110, 121, 130, 143, 242, 286, 605, 715, 1210, 1331, 1430, 1487, 1573, 2662, 2974, 3146, 6655, 7435, 7865, 13310, 14870, 15730, 16357, 17303, 19331, 32714, 34606, 38662, 81785, 86515, 96655, 163570, 173030, 179927, 193310, 212641, 359854, 425282, 899635, 1063205, 1799270, 1979197, 2126410, 2339051, 3958394, 4678102, 9895985, 11695255, 19791970, 23390510, 25729561, 51459122, 128647805, 257295610]

約数ペア:

[(1, 257295610), (2, 128647805), (5, 51459122), (10, 25729561), (11, 23390510), (13, 19791970), (22, 11695255), (26, 9895985), (55, 4678102), (65, 3958394), (110, 2339051), (121, 2126410), (130, 1979197), (143, 1799270), (242, 1063205), (286, 899635), (605, 425282), (715, 359854), (1210, 212641), (1331, 193310), (1430, 179927), (1487, 173030), (1573, 163570), (2662, 96655), (2974, 86515), (3146, 81785), (6655, 38662), (7435, 34606), (7865, 32714), (13310, 19331), (14870, 17303), (15730, 16357)]