71981505

素因数分解:

$3^2\times 5^1\times {\mathrm{401}}^1\times {\mathrm{3989}}^1$

素因数の和:4401

約数の個数: 24

約数和(自身を含む): 125110440

約数和(自身を除く): 53128935

約数列:

[1, 3, 5, 9, 15, 45, 401, 1203, 2005, 3609, 3989, 6015, 11967, 18045, 19945, 35901, 59835, 179505, 1599589, 4798767, 7997945, 14396301, 23993835, 71981505]

約数ペア:

[(1, 71981505), (3, 23993835), (5, 14396301), (9, 7997945), (15, 4798767), (45, 1599589), (401, 179505), (1203, 59835), (2005, 35901), (3609, 19945), (3989, 18045), (6015, 11967)]