28251225

素因数分解:

$3^2\times 5^2\times {\mathrm{241}}^1\times {\mathrm{521}}^1$

素因数の和:778

約数の個数: 36

約数和(自身を含む): 50908572

約数和(自身を除く): 22657347

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 241, 521, 723, 1205, 1563, 2169, 2605, 3615, 4689, 6025, 7815, 10845, 13025, 18075, 23445, 39075, 54225, 117225, 125561, 376683, 627805, 1130049, 1883415, 3139025, 5650245, 9417075, 28251225]

約数ペア:

[(1, 28251225), (3, 9417075), (5, 5650245), (9, 3139025), (15, 1883415), (25, 1130049), (45, 627805), (75, 376683), (225, 125561), (241, 117225), (521, 54225), (723, 39075), (1205, 23445), (1563, 18075), (2169, 13025), (2605, 10845), (3615, 7815), (4689, 6025)]