520019227

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^3$

素因数の和:240

約数の個数: 32

約数和(自身を含む): 683916800

約数和(自身を除く): 163897573

約数列:

[1, 7, 13, 19, 67, 91, 133, 247, 469, 871, 1273, 1729, 4489, 6097, 8911, 16549, 31423, 58357, 85291, 115843, 300763, 408499, 597037, 1108783, 2105341, 3909919, 5714497, 7761481, 27369433, 40001479, 74288461, 520019227]

約数ペア:

[(1, 520019227), (7, 74288461), (13, 40001479), (19, 27369433), (67, 7761481), (91, 5714497), (133, 3909919), (247, 2105341), (469, 1108783), (871, 597037), (1273, 408499), (1729, 300763), (4489, 115843), (6097, 85291), (8911, 58357), (16549, 31423)]