20497610

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{443}}^1\times {\mathrm{661}}^1$

素因数の和:1118

約数の個数: 32

約数和(自身を含む): 42325632

約数和(自身を除く): 21828022

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 443, 661, 886, 1322, 2215, 3101, 3305, 4430, 4627, 6202, 6610, 9254, 15505, 23135, 31010, 46270, 292823, 585646, 1464115, 2049761, 2928230, 4099522, 10248805, 20497610]

約数ペア:

[(1, 20497610), (2, 10248805), (5, 4099522), (7, 2928230), (10, 2049761), (14, 1464115), (35, 585646), (70, 292823), (443, 46270), (661, 31010), (886, 23135), (1322, 15505), (2215, 9254), (3101, 6610), (3305, 6202), (4430, 4627)]