20151380

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{11321}}^1$

素因数の和:11419

約数の個数: 24

約数和(自身を含む): 42797160

約数和(自身を除く): 22645780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 11321, 22642, 45284, 56605, 113210, 226420, 1007569, 2015138, 4030276, 5037845, 10075690, 20151380]

約数ペア:

[(1, 20151380), (2, 10075690), (4, 5037845), (5, 4030276), (10, 2015138), (20, 1007569), (89, 226420), (178, 113210), (356, 56605), (445, 45284), (890, 22642), (1780, 11321)]