15905240

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{419}}^1$

素因数の和:516

約数の個数: 64

約数和(自身を含む): 39160800

約数和(自身を除く): 23255560

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 73, 104, 130, 146, 260, 292, 365, 419, 520, 584, 730, 838, 949, 1460, 1676, 1898, 2095, 2920, 3352, 3796, 4190, 4745, 5447, 7592, 8380, 9490, 10894, 16760, 18980, 21788, 27235, 30587, 37960, 43576, 54470, 61174, 108940, 122348, 152935, 217880, 244696, 305870, 397631, 611740, 795262, 1223480, 1590524, 1988155, 3181048, 3976310, 7952620, 15905240]

約数ペア:

[(1, 15905240), (2, 7952620), (4, 3976310), (5, 3181048), (8, 1988155), (10, 1590524), (13, 1223480), (20, 795262), (26, 611740), (40, 397631), (52, 305870), (65, 244696), (73, 217880), (104, 152935), (130, 122348), (146, 108940), (260, 61174), (292, 54470), (365, 43576), (419, 37960), (520, 30587), (584, 27235), (730, 21788), (838, 18980), (949, 16760), (1460, 10894), (1676, 9490), (1898, 8380), (2095, 7592), (2920, 5447), (3352, 4745), (3796, 4190)]