20354625

素因数分解:

$3^3\times 5^3\times {\mathrm{37}}^1\times {\mathrm{163}}^1$

素因数の和:224

約数の個数: 64

約数和(自身を含む): 38887680

約数和(自身を除く): 18533055

約数列:

[1, 3, 5, 9, 15, 25, 27, 37, 45, 75, 111, 125, 135, 163, 185, 225, 333, 375, 489, 555, 675, 815, 925, 999, 1125, 1467, 1665, 2445, 2775, 3375, 4075, 4401, 4625, 4995, 6031, 7335, 8325, 12225, 13875, 18093, 20375, 22005, 24975, 30155, 36675, 41625, 54279, 61125, 90465, 110025, 124875, 150775, 162837, 183375, 271395, 452325, 550125, 753875, 814185, 1356975, 2261625, 4070925, 6784875, 20354625]

約数ペア:

[(1, 20354625), (3, 6784875), (5, 4070925), (9, 2261625), (15, 1356975), (25, 814185), (27, 753875), (37, 550125), (45, 452325), (75, 271395), (111, 183375), (125, 162837), (135, 150775), (163, 124875), (185, 110025), (225, 90465), (333, 61125), (375, 54279), (489, 41625), (555, 36675), (675, 30155), (815, 24975), (925, 22005), (999, 20375), (1125, 18093), (1467, 13875), (1665, 12225), (2445, 8325), (2775, 7335), (3375, 6031), (4075, 4995), (4401, 4625)]