8768240

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{8431}}^1$

素因数の和:8457

約数の個数: 40

約数和(自身を含む): 21956928

約数和(自身を除く): 13188688

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 8431, 16862, 33724, 42155, 67448, 84310, 109603, 134896, 168620, 219206, 337240, 438412, 548015, 674480, 876824, 1096030, 1753648, 2192060, 4384120, 8768240]

約数ペア:

[(1, 8768240), (2, 4384120), (4, 2192060), (5, 1753648), (8, 1096030), (10, 876824), (13, 674480), (16, 548015), (20, 438412), (26, 337240), (40, 219206), (52, 168620), (65, 134896), (80, 109603), (104, 84310), (130, 67448), (208, 42155), (260, 33724), (520, 16862), (1040, 8431)]