638864090

素因数分解:

$2^1\times 5^1\times {\mathrm{3467}}^1\times {\mathrm{18427}}^1$

素因数の和:21901

約数の個数: 16

約数和(自身を含む): 1150349472

約数和(自身を除く): 511485382

約数列:

[1, 2, 5, 10, 3467, 6934, 17335, 18427, 34670, 36854, 92135, 184270, 63886409, 127772818, 319432045, 638864090]

約数ペア:

[(1, 638864090), (2, 319432045), (5, 127772818), (10, 63886409), (3467, 184270), (6934, 92135), (17335, 36854), (18427, 34670)]