87921820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{628013}}^1$

素因数の和:628029

約数の個数: 24

約数和(自身を含む): 211012704

約数和(自身を除く): 123090884

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 628013, 1256026, 2512052, 3140065, 4396091, 6280130, 8792182, 12560260, 17584364, 21980455, 43960910, 87921820]

約数ペア:

[(1, 87921820), (2, 43960910), (4, 21980455), (5, 17584364), (7, 12560260), (10, 8792182), (14, 6280130), (20, 4396091), (28, 3140065), (35, 2512052), (70, 1256026), (140, 628013)]