20784150290

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{26309051}}^1$

素因数の和:26309137

約数の個数: 16

約数和(自身を含む): 37885034880

約数和(自身を除く): 17100884590

約数列:

[1, 2, 5, 10, 79, 158, 395, 790, 26309051, 52618102, 131545255, 263090510, 2078415029, 4156830058, 10392075145, 20784150290]

約数ペア:

[(1, 20784150290), (2, 10392075145), (5, 4156830058), (10, 2078415029), (79, 263090510), (158, 131545255), (395, 52618102), (790, 26309051)]