31988815

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{137}}^1$

素因数の和:267

約数の個数: 32

約数和(自身を含む): 42565824

約数和(自身を除く): 10577009

約数列:

[1, 5, 17, 41, 67, 85, 137, 205, 335, 685, 697, 1139, 2329, 2747, 3485, 5617, 5695, 9179, 11645, 13735, 28085, 45895, 46699, 95489, 156043, 233495, 376339, 477445, 780215, 1881695, 6397763, 31988815]

約数ペア:

[(1, 31988815), (5, 6397763), (17, 1881695), (41, 780215), (67, 477445), (85, 376339), (137, 233495), (205, 156043), (335, 95489), (685, 46699), (697, 45895), (1139, 28085), (2329, 13735), (2747, 11645), (3485, 9179), (5617, 5695)]