256220852

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{811}}^1\times {\mathrm{4157}}^1$

素因数の和:4991

約数の個数: 24

約数和(自身を含む): 472681440

約数和(自身を除く): 216460588

約数列:

[1, 2, 4, 19, 38, 76, 811, 1622, 3244, 4157, 8314, 15409, 16628, 30818, 61636, 78983, 157966, 315932, 3371327, 6742654, 13485308, 64055213, 128110426, 256220852]

約数ペア:

[(1, 256220852), (2, 128110426), (4, 64055213), (19, 13485308), (38, 6742654), (76, 3371327), (811, 315932), (1622, 157966), (3244, 78983), (4157, 61636), (8314, 30818), (15409, 16628)]