15988720

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{18169}}^1$

素因数の和:18193

約数の個数: 40

約数和(自身を含む): 40555440

約数和(自身を除く): 24566720

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 18169, 36338, 72676, 90845, 145352, 181690, 199859, 290704, 363380, 399718, 726760, 799436, 999295, 1453520, 1598872, 1998590, 3197744, 3997180, 7994360, 15988720]

約数ペア:

[(1, 15988720), (2, 7994360), (4, 3997180), (5, 3197744), (8, 1998590), (10, 1598872), (11, 1453520), (16, 999295), (20, 799436), (22, 726760), (40, 399718), (44, 363380), (55, 290704), (80, 199859), (88, 181690), (110, 145352), (176, 90845), (220, 72676), (440, 36338), (880, 18169)]