2015900720

素因数分解:

$2^4\times 5^1\times {\mathrm{25198759}}^1$

素因数の和:25198772

約数の個数: 20

約数和(自身を含む): 4686969360

約数和(自身を除く): 2671068640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 25198759, 50397518, 100795036, 125993795, 201590072, 251987590, 403180144, 503975180, 1007950360, 2015900720]

約数ペア:

[(1, 2015900720), (2, 1007950360), (4, 503975180), (5, 403180144), (8, 251987590), (10, 201590072), (16, 125993795), (20, 100795036), (40, 50397518), (80, 25198759)]