1400980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{10007}}^1$

素因数の和:10023

約数の個数: 24

約数和(自身を含む): 3362688

約数和(自身を除く): 1961708

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 10007, 20014, 40028, 50035, 70049, 100070, 140098, 200140, 280196, 350245, 700490, 1400980]

約数ペア:

[(1, 1400980), (2, 700490), (4, 350245), (5, 280196), (7, 200140), (10, 140098), (14, 100070), (20, 70049), (28, 50035), (35, 40028), (70, 20014), (140, 10007)]