18251980

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{19417}}^1$

素因数の和:19473

約数の個数: 24

約数和(自身を含む): 39146688

約数和(自身を除く): 20894708

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 470, 940, 19417, 38834, 77668, 97085, 194170, 388340, 912599, 1825198, 3650396, 4562995, 9125990, 18251980]

約数ペア:

[(1, 18251980), (2, 9125990), (4, 4562995), (5, 3650396), (10, 1825198), (20, 912599), (47, 388340), (94, 194170), (188, 97085), (235, 77668), (470, 38834), (940, 19417)]