25405245

素因数分解:

$3^4\times 5^1\times {\mathrm{149}}^1\times {\mathrm{421}}^1$

素因数の和:587

約数の個数: 40

約数和(自身を含む): 45955800

約数和(自身を除く): 20550555

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 149, 405, 421, 447, 745, 1263, 1341, 2105, 2235, 3789, 4023, 6315, 6705, 11367, 12069, 18945, 20115, 34101, 56835, 60345, 62729, 170505, 188187, 313645, 564561, 940935, 1693683, 2822805, 5081049, 8468415, 25405245]

約数ペア:

[(1, 25405245), (3, 8468415), (5, 5081049), (9, 2822805), (15, 1693683), (27, 940935), (45, 564561), (81, 313645), (135, 188187), (149, 170505), (405, 62729), (421, 60345), (447, 56835), (745, 34101), (1263, 20115), (1341, 18945), (2105, 12069), (2235, 11367), (3789, 6705), (4023, 6315)]