81037625

素因数分解:

$5^3\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{397}}^1$

素因数の和:506

約数の個数: 32

約数和(自身を含む): 107288064

約数和(自身を除く): 26250439

約数列:

[1, 5, 23, 25, 71, 115, 125, 355, 397, 575, 1633, 1775, 1985, 2875, 8165, 8875, 9131, 9925, 28187, 40825, 45655, 49625, 140935, 204125, 228275, 648301, 704675, 1141375, 3241505, 3523375, 16207525, 81037625]

約数ペア:

[(1, 81037625), (5, 16207525), (23, 3523375), (25, 3241505), (71, 1141375), (115, 704675), (125, 648301), (355, 228275), (397, 204125), (575, 140935), (1633, 49625), (1775, 45655), (1985, 40825), (2875, 28187), (8165, 9925), (8875, 9131)]