80492840

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{49081}}^1$

素因数の和:49133

約数の個数: 32

約数和(自身を含む): 185529960

約数和(自身を除く): 105037120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 49081, 98162, 196324, 245405, 392648, 490810, 981620, 1963240, 2012321, 4024642, 8049284, 10061605, 16098568, 20123210, 40246420, 80492840]

約数ペア:

[(1, 80492840), (2, 40246420), (4, 20123210), (5, 16098568), (8, 10061605), (10, 8049284), (20, 4024642), (40, 2012321), (41, 1963240), (82, 981620), (164, 490810), (205, 392648), (328, 245405), (410, 196324), (820, 98162), (1640, 49081)]