639444

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{4099}}^1$

素因数の和:4119

約数の個数: 24

約数和(自身を含む): 1607200

約数和(自身を除く): 967756

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 4099, 8198, 12297, 16396, 24594, 49188, 53287, 106574, 159861, 213148, 319722, 639444]

約数ペア:

[(1, 639444), (2, 319722), (3, 213148), (4, 159861), (6, 106574), (12, 53287), (13, 49188), (26, 24594), (39, 16396), (52, 12297), (78, 8198), (156, 4099)]