20315840

素因数分解:

$2^6\times 5^1\times {\mathrm{63487}}^1$

素因数の和:63504

約数の個数: 28

約数和(自身を含む): 48377856

約数和(自身を除く): 28062016

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 63487, 126974, 253948, 317435, 507896, 634870, 1015792, 1269740, 2031584, 2539480, 4063168, 5078960, 10157920, 20315840]

約数ペア:

[(1, 20315840), (2, 10157920), (4, 5078960), (5, 4063168), (8, 2539480), (10, 2031584), (16, 1269740), (20, 1015792), (32, 634870), (40, 507896), (64, 317435), (80, 253948), (160, 126974), (320, 63487)]