20300980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{145007}}^1$

素因数の和:145023

約数の個数: 24

約数和(自身を含む): 48722688

約数和(自身を除く): 28421708

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 145007, 290014, 580028, 725035, 1015049, 1450070, 2030098, 2900140, 4060196, 5075245, 10150490, 20300980]

約数ペア:

[(1, 20300980), (2, 10150490), (4, 5075245), (5, 4060196), (7, 2900140), (10, 2030098), (14, 1450070), (20, 1015049), (28, 725035), (35, 580028), (70, 290014), (140, 145007)]