31920645

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{151}}^1\times {\mathrm{829}}^1$

素因数の和:1005

約数の個数: 32

約数和(自身を含む): 54501120

約数和(自身を除く): 22580475

約数列:

[1, 3, 5, 15, 17, 51, 85, 151, 255, 453, 755, 829, 2265, 2487, 2567, 4145, 7701, 12435, 12835, 14093, 38505, 42279, 70465, 125179, 211395, 375537, 625895, 1877685, 2128043, 6384129, 10640215, 31920645]

約数ペア:

[(1, 31920645), (3, 10640215), (5, 6384129), (15, 2128043), (17, 1877685), (51, 625895), (85, 375537), (151, 211395), (255, 125179), (453, 70465), (755, 42279), (829, 38505), (2265, 14093), (2487, 12835), (2567, 12435), (4145, 7701)]