127817420

素因数分解:

$2^2\times 5^1\times {\mathrm{6390871}}^1$

素因数の和:6390880

約数の個数: 12

約数和(自身を含む): 268416624

約数和(自身を除く): 140599204

約数列:

[1, 2, 4, 5, 10, 20, 6390871, 12781742, 25563484, 31954355, 63908710, 127817420]

約数ペア:

[(1, 127817420), (2, 63908710), (4, 31954355), (5, 25563484), (10, 12781742), (20, 6390871)]