80463380

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{13921}}^1$

素因数の和:13964

約数の個数: 36

約数和(自身を含む): 179510268

約数和(自身を除く): 99046888

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 289, 340, 578, 1156, 1445, 2890, 5780, 13921, 27842, 55684, 69605, 139210, 236657, 278420, 473314, 946628, 1183285, 2366570, 4023169, 4733140, 8046338, 16092676, 20115845, 40231690, 80463380]

約数ペア:

[(1, 80463380), (2, 40231690), (4, 20115845), (5, 16092676), (10, 8046338), (17, 4733140), (20, 4023169), (34, 2366570), (68, 1183285), (85, 946628), (170, 473314), (289, 278420), (340, 236657), (578, 139210), (1156, 69605), (1445, 55684), (2890, 27842), (5780, 13921)]