2561625

素因数分解:

$3^4\times 5^3\times {\mathrm{11}}^1\times {\mathrm{23}}^1$

素因数の和:61

約数の個数: 80

約数和(自身を含む): 5436288

約数和(自身を除く): 2874663

約数列:

[1, 3, 5, 9, 11, 15, 23, 25, 27, 33, 45, 55, 69, 75, 81, 99, 115, 125, 135, 165, 207, 225, 253, 275, 297, 345, 375, 405, 495, 575, 621, 675, 759, 825, 891, 1035, 1125, 1265, 1375, 1485, 1725, 1863, 2025, 2277, 2475, 2875, 3105, 3375, 3795, 4125, 4455, 5175, 6325, 6831, 7425, 8625, 9315, 10125, 11385, 12375, 15525, 18975, 20493, 22275, 25875, 31625, 34155, 37125, 46575, 56925, 77625, 94875, 102465, 111375, 170775, 232875, 284625, 512325, 853875, 2561625]

約数ペア:

[(1, 2561625), (3, 853875), (5, 512325), (9, 284625), (11, 232875), (15, 170775), (23, 111375), (25, 102465), (27, 94875), (33, 77625), (45, 56925), (55, 46575), (69, 37125), (75, 34155), (81, 31625), (99, 25875), (115, 22275), (125, 20493), (135, 18975), (165, 15525), (207, 12375), (225, 11385), (253, 10125), (275, 9315), (297, 8625), (345, 7425), (375, 6831), (405, 6325), (495, 5175), (575, 4455), (621, 4125), (675, 3795), (759, 3375), (825, 3105), (891, 2875), (1035, 2475), (1125, 2277), (1265, 2025), (1375, 1863), (1485, 1725)]