123657985

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{1621}}^1$

素因数の和:1729

約数の個数: 32

約数和(自身を含む): 172840320

約数和(自身を除く): 49182335

約数列:

[1, 5, 11, 19, 55, 73, 95, 209, 365, 803, 1045, 1387, 1621, 4015, 6935, 8105, 15257, 17831, 30799, 76285, 89155, 118333, 153995, 338789, 591665, 1301663, 1693945, 2248327, 6508315, 11241635, 24731597, 123657985]

約数ペア:

[(1, 123657985), (5, 24731597), (11, 11241635), (19, 6508315), (55, 2248327), (73, 1693945), (95, 1301663), (209, 591665), (365, 338789), (803, 153995), (1045, 118333), (1387, 89155), (1621, 76285), (4015, 30799), (6935, 17831), (8105, 15257)]