680625

素因数分解:

$3^2\times 5^4\times {\mathrm{11}}^2$

素因数の和:48

約数の個数: 45

約数和(自身を含む): 1350349

約数和(自身を除く): 669724

約数列:

[1, 3, 5, 9, 11, 15, 25, 33, 45, 55, 75, 99, 121, 125, 165, 225, 275, 363, 375, 495, 605, 625, 825, 1089, 1125, 1375, 1815, 1875, 2475, 3025, 4125, 5445, 5625, 6875, 9075, 12375, 15125, 20625, 27225, 45375, 61875, 75625, 136125, 226875, 680625]

約数ペア:

[(1, 680625), (3, 226875), (5, 136125), (9, 75625), (11, 61875), (15, 45375), (25, 27225), (33, 20625), (45, 15125), (55, 12375), (75, 9075), (99, 6875), (121, 5625), (125, 5445), (165, 4125), (225, 3025), (275, 2475), (363, 1875), (375, 1815), (495, 1375), (605, 1125), (625, 1089)]