72955640

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{18803}}^1$

素因数の和:18911

約数の個数: 32

約数和(自身を含む): 165851280

約数和(自身を除く): 92895640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1940, 3880, 18803, 37606, 75212, 94015, 150424, 188030, 376060, 752120, 1823891, 3647782, 7295564, 9119455, 14591128, 18238910, 36477820, 72955640]

約数ペア:

[(1, 72955640), (2, 36477820), (4, 18238910), (5, 14591128), (8, 9119455), (10, 7295564), (20, 3647782), (40, 1823891), (97, 752120), (194, 376060), (388, 188030), (485, 150424), (776, 94015), (970, 75212), (1940, 37606), (3880, 18803)]