25643905

素因数分解:

$5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{131}}^1$

素因数の和:214

約数の個数: 48

約数和(自身を含む): 39004416

約数和(自身を除く): 13360511

約数列:

[1, 5, 7, 17, 35, 47, 49, 85, 119, 131, 235, 245, 329, 595, 655, 799, 833, 917, 1645, 2227, 2303, 3995, 4165, 4585, 5593, 6157, 6419, 11135, 11515, 15589, 27965, 30785, 32095, 39151, 43099, 77945, 104669, 109123, 195755, 215495, 301693, 523345, 545615, 732683, 1508465, 3663415, 5128781, 25643905]

約数ペア:

[(1, 25643905), (5, 5128781), (7, 3663415), (17, 1508465), (35, 732683), (47, 545615), (49, 523345), (85, 301693), (119, 215495), (131, 195755), (235, 109123), (245, 104669), (329, 77945), (595, 43099), (655, 39151), (799, 32095), (833, 30785), (917, 27965), (1645, 15589), (2227, 11515), (2303, 11135), (3995, 6419), (4165, 6157), (4585, 5593)]