20270480

素因数分解:

$2^4\times 5^1\times {\mathrm{253381}}^1$

素因数の和:253394

約数の個数: 20

約数和(自身を含む): 47129052

約数和(自身を除く): 26858572

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 253381, 506762, 1013524, 1266905, 2027048, 2533810, 4054096, 5067620, 10135240, 20270480]

約数ペア:

[(1, 20270480), (2, 10135240), (4, 5067620), (5, 4054096), (8, 2533810), (10, 2027048), (16, 1266905), (20, 1013524), (40, 506762), (80, 253381)]