66464240

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{139}}^2$

素因数の和:334

約数の個数: 60

約数和(自身を含む): 159268824

約数和(自身を除く): 92804584

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 139, 172, 215, 278, 344, 430, 556, 688, 695, 860, 1112, 1390, 1720, 2224, 2780, 3440, 5560, 5977, 11120, 11954, 19321, 23908, 29885, 38642, 47816, 59770, 77284, 95632, 96605, 119540, 154568, 193210, 239080, 309136, 386420, 478160, 772840, 830803, 1545680, 1661606, 3323212, 4154015, 6646424, 8308030, 13292848, 16616060, 33232120, 66464240]

約数ペア:

[(1, 66464240), (2, 33232120), (4, 16616060), (5, 13292848), (8, 8308030), (10, 6646424), (16, 4154015), (20, 3323212), (40, 1661606), (43, 1545680), (80, 830803), (86, 772840), (139, 478160), (172, 386420), (215, 309136), (278, 239080), (344, 193210), (430, 154568), (556, 119540), (688, 96605), (695, 95632), (860, 77284), (1112, 59770), (1390, 47816), (1720, 38642), (2224, 29885), (2780, 23908), (3440, 19321), (5560, 11954), (5977, 11120)]