77900840

素因数分解:

$2^3\times 5^1\times {\mathrm{241}}^1\times {\mathrm{8081}}^1$

素因数の和:8333

約数の個数: 32

約数和(自身を含む): 176025960

約数和(自身を除く): 98125120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 241, 482, 964, 1205, 1928, 2410, 4820, 8081, 9640, 16162, 32324, 40405, 64648, 80810, 161620, 323240, 1947521, 3895042, 7790084, 9737605, 15580168, 19475210, 38950420, 77900840]

約数ペア:

[(1, 77900840), (2, 38950420), (4, 19475210), (5, 15580168), (8, 9737605), (10, 7790084), (20, 3895042), (40, 1947521), (241, 323240), (482, 161620), (964, 80810), (1205, 64648), (1928, 40405), (2410, 32324), (4820, 16162), (8081, 9640)]