87403820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{624313}}^1$

素因数の和:624329

約数の個数: 24

約数和(自身を含む): 209769504

約数和(自身を除く): 122365684

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 624313, 1248626, 2497252, 3121565, 4370191, 6243130, 8740382, 12486260, 17480764, 21850955, 43701910, 87403820]

約数ペア:

[(1, 87403820), (2, 43701910), (4, 21850955), (5, 17480764), (7, 12486260), (10, 8740382), (14, 6243130), (20, 4370191), (28, 3121565), (35, 2497252), (70, 1248626), (140, 624313)]