68538340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{263609}}^1$

素因数の和:263631

約数の個数: 24

約数和(自身を含む): 155002680

約数和(自身を除く): 86464340

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 263609, 527218, 1054436, 1318045, 2636090, 3426917, 5272180, 6853834, 13707668, 17134585, 34269170, 68538340]

約数ペア:

[(1, 68538340), (2, 34269170), (4, 17134585), (5, 13707668), (10, 6853834), (13, 5272180), (20, 3426917), (26, 2636090), (52, 1318045), (65, 1054436), (130, 527218), (260, 263609)]