1640644

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{131}}^1$

素因数の和:267

約数の個数: 24

約数和(自身を含む): 3015936

約数和(自身を除く): 1375292

約数列:

[1, 2, 4, 31, 62, 101, 124, 131, 202, 262, 404, 524, 3131, 4061, 6262, 8122, 12524, 13231, 16244, 26462, 52924, 410161, 820322, 1640644]

約数ペア:

[(1, 1640644), (2, 820322), (4, 410161), (31, 52924), (62, 26462), (101, 16244), (124, 13231), (131, 12524), (202, 8122), (262, 6262), (404, 4061), (524, 3131)]