72855020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{520393}}^1$

素因数の和:520409

約数の個数: 24

約数和(自身を含む): 174852384

約数和(自身を除く): 101997364

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 520393, 1040786, 2081572, 2601965, 3642751, 5203930, 7285502, 10407860, 14571004, 18213755, 36427510, 72855020]

約数ペア:

[(1, 72855020), (2, 36427510), (4, 18213755), (5, 14571004), (7, 10407860), (10, 7285502), (14, 5203930), (20, 3642751), (28, 2601965), (35, 2081572), (70, 1040786), (140, 520393)]