25179275

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1$

素因数の和:180

約数の個数: 48

約数和(自身を含む): 36902400

約数和(自身を除く): 11723125

約数列:

[1, 5, 11, 19, 25, 55, 61, 79, 95, 209, 275, 305, 395, 475, 671, 869, 1045, 1159, 1501, 1525, 1975, 3355, 4345, 4819, 5225, 5795, 7505, 12749, 16511, 16775, 21725, 24095, 28975, 37525, 53009, 63745, 82555, 91561, 120475, 265045, 318725, 412775, 457805, 1007171, 1325225, 2289025, 5035855, 25179275]

約数ペア:

[(1, 25179275), (5, 5035855), (11, 2289025), (19, 1325225), (25, 1007171), (55, 457805), (61, 412775), (79, 318725), (95, 265045), (209, 120475), (275, 91561), (305, 82555), (395, 63745), (475, 53009), (671, 37525), (869, 28975), (1045, 24095), (1159, 21725), (1501, 16775), (1525, 16511), (1975, 12749), (3355, 7505), (4345, 5795), (4819, 5225)]