20280708578

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{18329}}^1\times {\mathrm{42557}}^1$

素因数の和:60901

約数の個数: 16

約数和(自身を含む): 32763701880

約数和(自身を除く): 12482993302

約数列:

[1, 2, 13, 26, 18329, 36658, 42557, 85114, 238277, 476554, 553241, 1106482, 780027253, 1560054506, 10140354289, 20280708578]

約数ペア:

[(1, 20280708578), (2, 10140354289), (13, 1560054506), (26, 780027253), (18329, 1106482), (36658, 553241), (42557, 476554), (85114, 238277)]