851342680

素因数分解:

$2^3\times 5^1\times {\mathrm{397}}^1\times {\mathrm{53611}}^1$

素因数の和:54019

約数の個数: 32

約数和(自身を含む): 1920381840

約数和(自身を除く): 1069039160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 397, 794, 1588, 1985, 3176, 3970, 7940, 15880, 53611, 107222, 214444, 268055, 428888, 536110, 1072220, 2144440, 21283567, 42567134, 85134268, 106417835, 170268536, 212835670, 425671340, 851342680]

約数ペア:

[(1, 851342680), (2, 425671340), (4, 212835670), (5, 170268536), (8, 106417835), (10, 85134268), (20, 42567134), (40, 21283567), (397, 2144440), (794, 1072220), (1588, 536110), (1985, 428888), (3176, 268055), (3970, 214444), (7940, 107222), (15880, 53611)]