28481625

素因数分解:

$3^4\times 5^3\times {\mathrm{29}}^1\times {\mathrm{97}}^1$

素因数の和:153

約数の個数: 80

約数和(自身を含む): 55495440

約数和(自身を除く): 27013815

約数列:

[1, 3, 5, 9, 15, 25, 27, 29, 45, 75, 81, 87, 97, 125, 135, 145, 225, 261, 291, 375, 405, 435, 485, 675, 725, 783, 873, 1125, 1305, 1455, 2025, 2175, 2349, 2425, 2619, 2813, 3375, 3625, 3915, 4365, 6525, 7275, 7857, 8439, 10125, 10875, 11745, 12125, 13095, 14065, 19575, 21825, 25317, 32625, 36375, 39285, 42195, 58725, 65475, 70325, 75951, 97875, 109125, 126585, 196425, 210975, 227853, 293625, 327375, 351625, 379755, 632925, 982125, 1054875, 1139265, 1898775, 3164625, 5696325, 9493875, 28481625]

約数ペア:

[(1, 28481625), (3, 9493875), (5, 5696325), (9, 3164625), (15, 1898775), (25, 1139265), (27, 1054875), (29, 982125), (45, 632925), (75, 379755), (81, 351625), (87, 327375), (97, 293625), (125, 227853), (135, 210975), (145, 196425), (225, 126585), (261, 109125), (291, 97875), (375, 75951), (405, 70325), (435, 65475), (485, 58725), (675, 42195), (725, 39285), (783, 36375), (873, 32625), (1125, 25317), (1305, 21825), (1455, 19575), (2025, 14065), (2175, 13095), (2349, 12125), (2425, 11745), (2619, 10875), (2813, 10125), (3375, 8439), (3625, 7857), (3915, 7275), (4365, 6525)]