20395870

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{1181}}^1$

素因数の和:1356

約数の個数: 32

約数和(自身を含む): 40339296

約数和(自身を除く): 19943426

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 157, 314, 785, 1181, 1570, 1727, 2362, 3454, 5905, 8635, 11810, 12991, 17270, 25982, 64955, 129910, 185417, 370834, 927085, 1854170, 2039587, 4079174, 10197935, 20395870]

約数ペア:

[(1, 20395870), (2, 10197935), (5, 4079174), (10, 2039587), (11, 1854170), (22, 927085), (55, 370834), (110, 185417), (157, 129910), (314, 64955), (785, 25982), (1181, 17270), (1570, 12991), (1727, 11810), (2362, 8635), (3454, 5905)]