123296720

素因数分解:

$2^4\times 5^1\times {\mathrm{1541209}}^1$

素因数の和:1541222

約数の個数: 20

約数和(自身を含む): 286665060

約数和(自身を除く): 163368340

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1541209, 3082418, 6164836, 7706045, 12329672, 15412090, 24659344, 30824180, 61648360, 123296720]

約数ペア:

[(1, 123296720), (2, 61648360), (4, 30824180), (5, 24659344), (8, 15412090), (10, 12329672), (16, 7706045), (20, 6164836), (40, 3082418), (80, 1541209)]