218224720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{389687}}^1$

素因数の和:389707

約数の個数: 40

約数和(自身を含む): 579855744

約数和(自身を除く): 361631024

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 389687, 779374, 1558748, 1948435, 2727809, 3117496, 3896870, 5455618, 6234992, 7793740, 10911236, 13639045, 15587480, 21822472, 27278090, 31174960, 43644944, 54556180, 109112360, 218224720]

約数ペア:

[(1, 218224720), (2, 109112360), (4, 54556180), (5, 43644944), (7, 31174960), (8, 27278090), (10, 21822472), (14, 15587480), (16, 13639045), (20, 10911236), (28, 7793740), (35, 6234992), (40, 5455618), (56, 3896870), (70, 3117496), (80, 2727809), (112, 1948435), (140, 1558748), (280, 779374), (560, 389687)]