20953280

素因数分解:

$2^6\times 5^1\times {\mathrm{65479}}^1$

素因数の和:65496

約数の個数: 28

約数和(自身を含む): 49895760

約数和(自身を除く): 28942480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 65479, 130958, 261916, 327395, 523832, 654790, 1047664, 1309580, 2095328, 2619160, 4190656, 5238320, 10476640, 20953280]

約数ペア:

[(1, 20953280), (2, 10476640), (4, 5238320), (5, 4190656), (8, 2619160), (10, 2095328), (16, 1309580), (20, 1047664), (32, 654790), (40, 523832), (64, 327395), (80, 261916), (160, 130958), (320, 65479)]