78808225

素因数分解:

$5^2\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{1531}}^1$

素因数の和:1641

約数の個数: 24

約数和(自身を含む): 102582720

約数和(自身を除く): 23774495

約数列:

[1, 5, 25, 29, 71, 145, 355, 725, 1531, 1775, 2059, 7655, 10295, 38275, 44399, 51475, 108701, 221995, 543505, 1109975, 2717525, 3152329, 15761645, 78808225]

約数ペア:

[(1, 78808225), (5, 15761645), (25, 3152329), (29, 2717525), (71, 1109975), (145, 543505), (355, 221995), (725, 108701), (1531, 51475), (1775, 44399), (2059, 38275), (7655, 10295)]