20044960

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{419}}^1$

素因数の和:470

約数の個数: 96

約数和(自身を含む): 53343360

約数和(自身を除く): 33298400

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 23, 26, 32, 40, 46, 52, 65, 80, 92, 104, 115, 130, 160, 184, 208, 230, 260, 299, 368, 416, 419, 460, 520, 598, 736, 838, 920, 1040, 1196, 1495, 1676, 1840, 2080, 2095, 2392, 2990, 3352, 3680, 4190, 4784, 5447, 5980, 6704, 8380, 9568, 9637, 10894, 11960, 13408, 16760, 19274, 21788, 23920, 27235, 33520, 38548, 43576, 47840, 48185, 54470, 67040, 77096, 87152, 96370, 108940, 125281, 154192, 174304, 192740, 217880, 250562, 308384, 385480, 435760, 501124, 626405, 770960, 871520, 1002248, 1252810, 1541920, 2004496, 2505620, 4008992, 5011240, 10022480, 20044960]

約数ペア:

[(1, 20044960), (2, 10022480), (4, 5011240), (5, 4008992), (8, 2505620), (10, 2004496), (13, 1541920), (16, 1252810), (20, 1002248), (23, 871520), (26, 770960), (32, 626405), (40, 501124), (46, 435760), (52, 385480), (65, 308384), (80, 250562), (92, 217880), (104, 192740), (115, 174304), (130, 154192), (160, 125281), (184, 108940), (208, 96370), (230, 87152), (260, 77096), (299, 67040), (368, 54470), (416, 48185), (419, 47840), (460, 43576), (520, 38548), (598, 33520), (736, 27235), (838, 23920), (920, 21788), (1040, 19274), (1196, 16760), (1495, 13408), (1676, 11960), (1840, 10894), (2080, 9637), (2095, 9568), (2392, 8380), (2990, 6704), (3352, 5980), (3680, 5447), (4190, 4784)]