289658525

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{421}}^1$

素因数の和:546

約数の個数: 48

約数和(自身を含む): 406588560

約数和(自身を除く): 116930035

約数列:

[1, 5, 13, 25, 29, 65, 73, 145, 325, 365, 377, 421, 725, 949, 1825, 1885, 2105, 2117, 4745, 5473, 9425, 10525, 10585, 12209, 23725, 27365, 27521, 30733, 52925, 61045, 136825, 137605, 153665, 158717, 305225, 399529, 688025, 768325, 793585, 891257, 1997645, 3967925, 4456285, 9988225, 11586341, 22281425, 57931705, 289658525]

約数ペア:

[(1, 289658525), (5, 57931705), (13, 22281425), (25, 11586341), (29, 9988225), (65, 4456285), (73, 3967925), (145, 1997645), (325, 891257), (365, 793585), (377, 768325), (421, 688025), (725, 399529), (949, 305225), (1825, 158717), (1885, 153665), (2105, 137605), (2117, 136825), (4745, 61045), (5473, 52925), (9425, 30733), (10525, 27521), (10585, 27365), (12209, 23725)]