20471760

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{28433}}^1$

素因数の和:28452

約数の個数: 60

約数和(自身を含む): 68753412

約数和(自身を除く): 48281652

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 28433, 56866, 85299, 113732, 142165, 170598, 227464, 255897, 284330, 341196, 426495, 454928, 511794, 568660, 682392, 852990, 1023588, 1137320, 1279485, 1364784, 1705980, 2047176, 2274640, 2558970, 3411960, 4094352, 5117940, 6823920, 10235880, 20471760]

約数ペア:

[(1, 20471760), (2, 10235880), (3, 6823920), (4, 5117940), (5, 4094352), (6, 3411960), (8, 2558970), (9, 2274640), (10, 2047176), (12, 1705980), (15, 1364784), (16, 1279485), (18, 1137320), (20, 1023588), (24, 852990), (30, 682392), (36, 568660), (40, 511794), (45, 454928), (48, 426495), (60, 341196), (72, 284330), (80, 255897), (90, 227464), (120, 170598), (144, 142165), (180, 113732), (240, 85299), (360, 56866), (720, 28433)]