20510890

素因数分解:

$2^1\times 5^1\times {\mathrm{313}}^1\times {\mathrm{6553}}^1$

素因数の和:6873

約数の個数: 16

約数和(自身を含む): 37043208

約数和(自身を除く): 16532318

約数列:

[1, 2, 5, 10, 313, 626, 1565, 3130, 6553, 13106, 32765, 65530, 2051089, 4102178, 10255445, 20510890]

約数ペア:

[(1, 20510890), (2, 10255445), (5, 4102178), (10, 2051089), (313, 65530), (626, 32765), (1565, 13106), (3130, 6553)]