261557848725

素因数分解:

$3^1\times 5^2\times {\mathrm{41}}^1\times {\mathrm{661}}^1\times {\mathrm{128683}}^1$

素因数の和:129398

約数の個数: 48

約数和(自身を含む): 443663312064

約数和(自身を除く): 182105463339

約数列:

[1, 3, 5, 15, 25, 41, 75, 123, 205, 615, 661, 1025, 1983, 3075, 3305, 9915, 16525, 27101, 49575, 81303, 128683, 135505, 386049, 406515, 643415, 677525, 1930245, 2032575, 3217075, 5276003, 9651225, 15828009, 26380015, 79140045, 85059463, 131900075, 255178389, 395700225, 425297315, 1275891945, 2126486575, 3487437983, 6379459725, 10462313949, 17437189915, 52311569745, 87185949575, 261557848725]

約数ペア:

[(1, 261557848725), (3, 87185949575), (5, 52311569745), (15, 17437189915), (25, 10462313949), (41, 6379459725), (75, 3487437983), (123, 2126486575), (205, 1275891945), (615, 425297315), (661, 395700225), (1025, 255178389), (1983, 131900075), (3075, 85059463), (3305, 79140045), (9915, 26380015), (16525, 15828009), (27101, 9651225), (49575, 5276003), (81303, 3217075), (128683, 2032575), (135505, 1930245), (386049, 677525), (406515, 643415)]