255991476

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{1640971}}^1$

素因数の和:1640991

約数の個数: 24

約数和(自身を含む): 643261024

約数和(自身を除く): 387269548

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 1640971, 3281942, 4922913, 6563884, 9845826, 19691652, 21332623, 42665246, 63997869, 85330492, 127995738, 255991476]

約数ペア:

[(1, 255991476), (2, 127995738), (3, 85330492), (4, 63997869), (6, 42665246), (12, 21332623), (13, 19691652), (26, 9845826), (39, 6563884), (52, 4922913), (78, 3281942), (156, 1640971)]