20180643940

素因数分解:

$2^2\times 5^1\times {\mathrm{45307}}^1\times {\mathrm{22271}}^1$

素因数の和:67587

約数の個数: 24

約数和(自身を含む): 42382190592

約数和(自身を除く): 22201546652

約数列:

[1, 2, 4, 5, 10, 20, 22271, 44542, 45307, 89084, 90614, 111355, 181228, 222710, 226535, 445420, 453070, 906140, 1009032197, 2018064394, 4036128788, 5045160985, 10090321970, 20180643940]

約数ペア:

[(1, 20180643940), (2, 10090321970), (4, 5045160985), (5, 4036128788), (10, 2018064394), (20, 1009032197), (22271, 906140), (44542, 453070), (45307, 445420), (89084, 226535), (90614, 222710), (111355, 181228)]