388013660

素因数分解:

$2^2\times 5^1\times {\mathrm{2153}}^1\times {\mathrm{9011}}^1$

素因数の和:11173

約数の個数: 24

約数和(自身を含む): 815297616

約数和(自身を除く): 427283956

約数列:

[1, 2, 4, 5, 10, 20, 2153, 4306, 8612, 9011, 10765, 18022, 21530, 36044, 43060, 45055, 90110, 180220, 19400683, 38801366, 77602732, 97003415, 194006830, 388013660]

約数ペア:

[(1, 388013660), (2, 194006830), (4, 97003415), (5, 77602732), (10, 38801366), (20, 19400683), (2153, 180220), (4306, 90110), (8612, 45055), (9011, 43060), (10765, 36044), (18022, 21530)]