17441720

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{3137}}^1$

素因数の和:3287

約数の個数: 32

約数和(自身を含む): 39538800

約数和(自身を除く): 22097080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 3137, 5560, 6274, 12548, 15685, 25096, 31370, 62740, 125480, 436043, 872086, 1744172, 2180215, 3488344, 4360430, 8720860, 17441720]

約数ペア:

[(1, 17441720), (2, 8720860), (4, 4360430), (5, 3488344), (8, 2180215), (10, 1744172), (20, 872086), (40, 436043), (139, 125480), (278, 62740), (556, 31370), (695, 25096), (1112, 15685), (1390, 12548), (2780, 6274), (3137, 5560)]