42139540

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{67967}}^1$

素因数の和:68007

約数の個数: 24

約数和(自身を含む): 91348992

約数和(自身を除く): 49209452

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 67967, 135934, 271868, 339835, 679670, 1359340, 2106977, 4213954, 8427908, 10534885, 21069770, 42139540]

約数ペア:

[(1, 42139540), (2, 21069770), (4, 10534885), (5, 8427908), (10, 4213954), (20, 2106977), (31, 1359340), (62, 679670), (124, 339835), (155, 271868), (310, 135934), (620, 67967)]