644748

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{4133}}^1$

素因数の和:4153

約数の個数: 24

約数和(自身を含む): 1620528

約数和(自身を除く): 975780

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 4133, 8266, 12399, 16532, 24798, 49596, 53729, 107458, 161187, 214916, 322374, 644748]

約数ペア:

[(1, 644748), (2, 322374), (3, 214916), (4, 161187), (6, 107458), (12, 53729), (13, 49596), (26, 24798), (39, 16532), (52, 12399), (78, 8266), (156, 4133)]