1408940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{5419}}^1$

素因数の和:5441

約数の個数: 24

約数和(自身を含む): 3186960

約数和(自身を除く): 1778020

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 5419, 10838, 21676, 27095, 54190, 70447, 108380, 140894, 281788, 352235, 704470, 1408940]

約数ペア:

[(1, 1408940), (2, 704470), (4, 352235), (5, 281788), (10, 140894), (13, 108380), (20, 70447), (26, 54190), (52, 27095), (65, 21676), (130, 10838), (260, 5419)]