81330380

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{14071}}^1$

素因数の和:14114

約数の個数: 36

約数和(自身を含む): 181444368

約数和(自身を除く): 100113988

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 289, 340, 578, 1156, 1445, 2890, 5780, 14071, 28142, 56284, 70355, 140710, 239207, 281420, 478414, 956828, 1196035, 2392070, 4066519, 4784140, 8133038, 16266076, 20332595, 40665190, 81330380]

約数ペア:

[(1, 81330380), (2, 40665190), (4, 20332595), (5, 16266076), (10, 8133038), (17, 4784140), (20, 4066519), (34, 2392070), (68, 1196035), (85, 956828), (170, 478414), (289, 281420), (340, 239207), (578, 140710), (1156, 70355), (1445, 56284), (2890, 28142), (5780, 14071)]