2080642840

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{319117}}^1$

素因数の和:319291

約数の個数: 32

約数和(自身を含む): 4710181680

約数和(自身を除く): 2629538840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1630, 3260, 6520, 319117, 638234, 1276468, 1595585, 2552936, 3191170, 6382340, 12764680, 52016071, 104032142, 208064284, 260080355, 416128568, 520160710, 1040321420, 2080642840]

約数ペア:

[(1, 2080642840), (2, 1040321420), (4, 520160710), (5, 416128568), (8, 260080355), (10, 208064284), (20, 104032142), (40, 52016071), (163, 12764680), (326, 6382340), (652, 3191170), (815, 2552936), (1304, 1595585), (1630, 1276468), (3260, 638234), (6520, 319117)]