81639020

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{110323}}^1$

素因数の和:110369

約数の個数: 24

約数和(自身を含む): 176077104

約数和(自身を除く): 94438084

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 370, 740, 110323, 220646, 441292, 551615, 1103230, 2206460, 4081951, 8163902, 16327804, 20409755, 40819510, 81639020]

約数ペア:

[(1, 81639020), (2, 40819510), (4, 20409755), (5, 16327804), (10, 8163902), (20, 4081951), (37, 2206460), (74, 1103230), (148, 551615), (185, 441292), (370, 220646), (740, 110323)]