72547880

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{42179}}^1$

素因数の和:42233

約数の個数: 32

約数和(自身を含む): 167032800

約数和(自身を除く): 94484920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 42179, 84358, 168716, 210895, 337432, 421790, 843580, 1687160, 1813697, 3627394, 7254788, 9068485, 14509576, 18136970, 36273940, 72547880]

約数ペア:

[(1, 72547880), (2, 36273940), (4, 18136970), (5, 14509576), (8, 9068485), (10, 7254788), (20, 3627394), (40, 1813697), (43, 1687160), (86, 843580), (172, 421790), (215, 337432), (344, 210895), (430, 168716), (860, 84358), (1720, 42179)]