25561745

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{401}}^1$

素因数の和:497

約数の個数: 32

約数和(自身を含む): 35890560

約数和(自身を除く): 10328815

約数列:

[1, 5, 11, 19, 55, 61, 95, 209, 305, 401, 671, 1045, 1159, 2005, 3355, 4411, 5795, 7619, 12749, 22055, 24461, 38095, 63745, 83809, 122305, 269071, 419045, 464759, 1345355, 2323795, 5112349, 25561745]

約数ペア:

[(1, 25561745), (5, 5112349), (11, 2323795), (19, 1345355), (55, 464759), (61, 419045), (95, 269071), (209, 122305), (305, 83809), (401, 63745), (671, 38095), (1045, 24461), (1159, 22055), (2005, 12749), (3355, 7619), (4411, 5795)]