688012

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{131}}^1$

素因数の和:249

約数の個数: 24

約数和(自身を含む): 1319472

約数和(自身を除く): 631460

約数列:

[1, 2, 4, 13, 26, 52, 101, 131, 202, 262, 404, 524, 1313, 1703, 2626, 3406, 5252, 6812, 13231, 26462, 52924, 172003, 344006, 688012]

約数ペア:

[(1, 688012), (2, 344006), (4, 172003), (13, 52924), (26, 26462), (52, 13231), (101, 6812), (131, 5252), (202, 3406), (262, 2626), (404, 1703), (524, 1313)]