100217420

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{161641}}^1$

素因数の和:161681

約数の個数: 24

約数和(自身を含む): 217246848

約数和(自身を除く): 117029428

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 161641, 323282, 646564, 808205, 1616410, 3232820, 5010871, 10021742, 20043484, 25054355, 50108710, 100217420]

約数ペア:

[(1, 100217420), (2, 50108710), (4, 25054355), (5, 20043484), (10, 10021742), (20, 5010871), (31, 3232820), (62, 1616410), (124, 808205), (155, 646564), (310, 323282), (620, 161641)]