11881720

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{2137}}^1$

素因数の和:2287

約数の個数: 32

約数和(自身を含む): 26938800

約数和(自身を除く): 15057080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2137, 2780, 4274, 5560, 8548, 10685, 17096, 21370, 42740, 85480, 297043, 594086, 1188172, 1485215, 2376344, 2970430, 5940860, 11881720]

約数ペア:

[(1, 11881720), (2, 5940860), (4, 2970430), (5, 2376344), (8, 1485215), (10, 1188172), (20, 594086), (40, 297043), (139, 85480), (278, 42740), (556, 21370), (695, 17096), (1112, 10685), (1390, 8548), (2137, 5560), (2780, 4274)]