256657020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{523}}^1\times {\mathrm{8179}}^1$

素因数の和:8714

約数の個数: 48

約数和(自身を含む): 720101760

約数和(自身を除く): 463444740

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 523, 1046, 1569, 2092, 2615, 3138, 5230, 6276, 7845, 8179, 10460, 15690, 16358, 24537, 31380, 32716, 40895, 49074, 81790, 98148, 122685, 163580, 245370, 490740, 4277617, 8555234, 12832851, 17110468, 21388085, 25665702, 42776170, 51331404, 64164255, 85552340, 128328510, 256657020]

約数ペア:

[(1, 256657020), (2, 128328510), (3, 85552340), (4, 64164255), (5, 51331404), (6, 42776170), (10, 25665702), (12, 21388085), (15, 17110468), (20, 12832851), (30, 8555234), (60, 4277617), (523, 490740), (1046, 245370), (1569, 163580), (2092, 122685), (2615, 98148), (3138, 81790), (5230, 49074), (6276, 40895), (7845, 32716), (8179, 31380), (10460, 24537), (15690, 16358)]