20499928

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{631}}^1$

素因数の和:799

約数の個数: 32

約数和(自身を含む): 40043520

約数和(自身を除く): 19543592

約数列:

[1, 2, 4, 8, 31, 62, 124, 131, 248, 262, 524, 631, 1048, 1262, 2524, 4061, 5048, 8122, 16244, 19561, 32488, 39122, 78244, 82661, 156488, 165322, 330644, 661288, 2562491, 5124982, 10249964, 20499928]

約数ペア:

[(1, 20499928), (2, 10249964), (4, 5124982), (8, 2562491), (31, 661288), (62, 330644), (124, 165322), (131, 156488), (248, 82661), (262, 78244), (524, 39122), (631, 32488), (1048, 19561), (1262, 16244), (2524, 8122), (4061, 5048)]