20804910736

素因数分解:

$2^4\times {\mathrm{18539}}^1\times {\mathrm{70139}}^1$

素因数の和:88686

約数の個数: 20

約数和(自身を含む): 40312263600

約数和(自身を除く): 19507352864

約数列:

[1, 2, 4, 8, 16, 18539, 37078, 70139, 74156, 140278, 148312, 280556, 296624, 561112, 1122224, 1300306921, 2600613842, 5201227684, 10402455368, 20804910736]

約数ペア:

[(1, 20804910736), (2, 10402455368), (4, 5201227684), (8, 2600613842), (16, 1300306921), (18539, 1122224), (37078, 561112), (70139, 296624), (74156, 280556), (140278, 148312)]