85387640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{5297}}^1$

素因数の和:5352

約数の個数: 64

約数和(自身を含む): 213615360

約数和(自身を除く): 128227720

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 104, 124, 130, 155, 248, 260, 310, 403, 520, 620, 806, 1240, 1612, 2015, 3224, 4030, 5297, 8060, 10594, 16120, 21188, 26485, 42376, 52970, 68861, 105940, 137722, 164207, 211880, 275444, 328414, 344305, 550888, 656828, 688610, 821035, 1313656, 1377220, 1642070, 2134691, 2754440, 3284140, 4269382, 6568280, 8538764, 10673455, 17077528, 21346910, 42693820, 85387640]

約数ペア:

[(1, 85387640), (2, 42693820), (4, 21346910), (5, 17077528), (8, 10673455), (10, 8538764), (13, 6568280), (20, 4269382), (26, 3284140), (31, 2754440), (40, 2134691), (52, 1642070), (62, 1377220), (65, 1313656), (104, 821035), (124, 688610), (130, 656828), (155, 550888), (248, 344305), (260, 328414), (310, 275444), (403, 211880), (520, 164207), (620, 137722), (806, 105940), (1240, 68861), (1612, 52970), (2015, 42376), (3224, 26485), (4030, 21188), (5297, 16120), (8060, 10594)]