12791120

素因数分解:

$2^4\times 5^1\times {\mathrm{281}}^1\times {\mathrm{569}}^1$

素因数の和:863

約数の個数: 40

約数和(自身を含む): 29897640

約数和(自身を除く): 17106520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 281, 562, 569, 1124, 1138, 1405, 2248, 2276, 2810, 2845, 4496, 4552, 5620, 5690, 9104, 11240, 11380, 22480, 22760, 45520, 159889, 319778, 639556, 799445, 1279112, 1598890, 2558224, 3197780, 6395560, 12791120]

約数ペア:

[(1, 12791120), (2, 6395560), (4, 3197780), (5, 2558224), (8, 1598890), (10, 1279112), (16, 799445), (20, 639556), (40, 319778), (80, 159889), (281, 45520), (562, 22760), (569, 22480), (1124, 11380), (1138, 11240), (1405, 9104), (2248, 5690), (2276, 5620), (2810, 4552), (2845, 4496)]