20406390

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{680213}}^1$

素因数の和:680223

約数の個数: 16

約数和(自身を含む): 48975408

約数和(自身を除く): 28569018

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 680213, 1360426, 2040639, 3401065, 4081278, 6802130, 10203195, 20406390]

約数ペア:

[(1, 20406390), (2, 10203195), (3, 6802130), (5, 4081278), (6, 3401065), (10, 2040639), (15, 1360426), (30, 680213)]