85424560

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{82139}}^1$

素因数の和:82165

約数の個数: 40

約数和(自身を含む): 213892560

約数和(自身を除く): 128468000

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 82139, 164278, 328556, 410695, 657112, 821390, 1067807, 1314224, 1642780, 2135614, 3285560, 4271228, 5339035, 6571120, 8542456, 10678070, 17084912, 21356140, 42712280, 85424560]

約数ペア:

[(1, 85424560), (2, 42712280), (4, 21356140), (5, 17084912), (8, 10678070), (10, 8542456), (13, 6571120), (16, 5339035), (20, 4271228), (26, 3285560), (40, 2135614), (52, 1642780), (65, 1314224), (80, 1067807), (104, 821390), (130, 657112), (208, 410695), (260, 328556), (520, 164278), (1040, 82139)]