8540980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{61007}}^1$

素因数の和:61023

約数の個数: 24

約数和(自身を含む): 20498688

約数和(自身を除く): 11957708

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 61007, 122014, 244028, 305035, 427049, 610070, 854098, 1220140, 1708196, 2135245, 4270490, 8540980]

約数ペア:

[(1, 8540980), (2, 4270490), (4, 2135245), (5, 1708196), (7, 1220140), (10, 854098), (14, 610070), (20, 427049), (28, 305035), (35, 244028), (70, 122014), (140, 61007)]