256458228

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{1643963}}^1$

素因数の和:1643983

約数の個数: 24

約数和(自身を含む): 644433888

約数和(自身を除く): 387975660

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 1643963, 3287926, 4931889, 6575852, 9863778, 19727556, 21371519, 42743038, 64114557, 85486076, 128229114, 256458228]

約数ペア:

[(1, 256458228), (2, 128229114), (3, 85486076), (4, 64114557), (6, 42743038), (12, 21371519), (13, 19727556), (26, 9863778), (39, 6575852), (52, 4931889), (78, 3287926), (156, 1643963)]