85415980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{683}}^1$

素因数の和:755

約数の個数: 72

約数和(自身を含む): 199774512

約数和(自身を除く): 114358532

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 37, 52, 65, 74, 130, 148, 169, 185, 260, 338, 370, 481, 676, 683, 740, 845, 962, 1366, 1690, 1924, 2405, 2732, 3380, 3415, 4810, 6253, 6830, 8879, 9620, 12506, 13660, 17758, 25012, 25271, 31265, 35516, 44395, 50542, 62530, 88790, 101084, 115427, 125060, 126355, 177580, 230854, 252710, 328523, 461708, 505420, 577135, 657046, 1154270, 1314092, 1642615, 2308540, 3285230, 4270799, 6570460, 8541598, 17083196, 21353995, 42707990, 85415980]

約数ペア:

[(1, 85415980), (2, 42707990), (4, 21353995), (5, 17083196), (10, 8541598), (13, 6570460), (20, 4270799), (26, 3285230), (37, 2308540), (52, 1642615), (65, 1314092), (74, 1154270), (130, 657046), (148, 577135), (169, 505420), (185, 461708), (260, 328523), (338, 252710), (370, 230854), (481, 177580), (676, 126355), (683, 125060), (740, 115427), (845, 101084), (962, 88790), (1366, 62530), (1690, 50542), (1924, 44395), (2405, 35516), (2732, 31265), (3380, 25271), (3415, 25012), (4810, 17758), (6253, 13660), (6830, 12506), (8879, 9620)]