978188720

素因数分解:

$2^4\times 5^1\times {\mathrm{12227359}}^1$

素因数の和:12227372

約数の個数: 20

約数和(自身を含む): 2274288960

約数和(自身を除く): 1296100240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 12227359, 24454718, 48909436, 61136795, 97818872, 122273590, 195637744, 244547180, 489094360, 978188720]

約数ペア:

[(1, 978188720), (2, 489094360), (4, 244547180), (5, 195637744), (8, 122273590), (10, 97818872), (16, 61136795), (20, 48909436), (40, 24454718), (80, 12227359)]