39544375

素因数分解:

$5^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1$

素因数の和:221

約数の個数: 40

約数和(自身を含む): 55282304

約数和(自身を除く): 15737929

約数列:

[1, 5, 13, 25, 31, 65, 125, 155, 157, 325, 403, 625, 775, 785, 1625, 2015, 2041, 3875, 3925, 4867, 8125, 10075, 10205, 19375, 19625, 24335, 50375, 51025, 63271, 98125, 121675, 251875, 255125, 316355, 608375, 1275625, 1581775, 3041875, 7908875, 39544375]

約数ペア:

[(1, 39544375), (5, 7908875), (13, 3041875), (25, 1581775), (31, 1275625), (65, 608375), (125, 316355), (155, 255125), (157, 251875), (325, 121675), (403, 98125), (625, 63271), (775, 51025), (785, 50375), (1625, 24335), (2015, 19625), (2041, 19375), (3875, 10205), (3925, 10075), (4867, 8125)]