20308280

素因数分解:

$2^3\times 5^1\times {\mathrm{233}}^1\times {\mathrm{2179}}^1$

素因数の和:2423

約数の個数: 32

約数和(自身を含む): 45910800

約数和(自身を除く): 25602520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 233, 466, 932, 1165, 1864, 2179, 2330, 4358, 4660, 8716, 9320, 10895, 17432, 21790, 43580, 87160, 507707, 1015414, 2030828, 2538535, 4061656, 5077070, 10154140, 20308280]

約数ペア:

[(1, 20308280), (2, 10154140), (4, 5077070), (5, 4061656), (8, 2538535), (10, 2030828), (20, 1015414), (40, 507707), (233, 87160), (466, 43580), (932, 21790), (1165, 17432), (1864, 10895), (2179, 9320), (2330, 8716), (4358, 4660)]