640393157

素因数分解:

${\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{397}}^1\times {\mathrm{1163}}^1$

素因数の和:1652

約数の個数: 16

約数和(自身を含む): 685642560

約数和(自身を除く): 45249403

約数列:

[1, 19, 73, 397, 1163, 1387, 7543, 22097, 28981, 84899, 461711, 550639, 1613081, 8772509, 33704903, 640393157]

約数ペア:

[(1, 640393157), (19, 33704903), (73, 8772509), (397, 1613081), (1163, 550639), (1387, 461711), (7543, 84899), (22097, 28981)]