123778125

素因数分解:

$3^5\times 5^5\times {\mathrm{163}}^1$

素因数の和:203

約数の個数: 72

約数和(自身を含む): 233172576

約数和(自身を除く): 109394451

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 125, 135, 163, 225, 243, 375, 405, 489, 625, 675, 815, 1125, 1215, 1467, 1875, 2025, 2445, 3125, 3375, 4075, 4401, 5625, 6075, 7335, 9375, 10125, 12225, 13203, 16875, 20375, 22005, 28125, 30375, 36675, 39609, 50625, 61125, 66015, 84375, 101875, 110025, 151875, 183375, 198045, 253125, 305625, 330075, 509375, 550125, 759375, 916875, 990225, 1528125, 1650375, 2750625, 4584375, 4951125, 8251875, 13753125, 24755625, 41259375, 123778125]

約数ペア:

[(1, 123778125), (3, 41259375), (5, 24755625), (9, 13753125), (15, 8251875), (25, 4951125), (27, 4584375), (45, 2750625), (75, 1650375), (81, 1528125), (125, 990225), (135, 916875), (163, 759375), (225, 550125), (243, 509375), (375, 330075), (405, 305625), (489, 253125), (625, 198045), (675, 183375), (815, 151875), (1125, 110025), (1215, 101875), (1467, 84375), (1875, 66015), (2025, 61125), (2445, 50625), (3125, 39609), (3375, 36675), (4075, 30375), (4401, 28125), (5625, 22005), (6075, 20375), (7335, 16875), (9375, 13203), (10125, 12225)]