8701980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{20719}}^1$

素因数の和:20738

約数の個数: 48

約数和(自身を含む): 27847680

約数和(自身を除く): 19145700

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 20719, 41438, 62157, 82876, 103595, 124314, 145033, 207190, 248628, 290066, 310785, 414380, 435099, 580132, 621570, 725165, 870198, 1243140, 1450330, 1740396, 2175495, 2900660, 4350990, 8701980]

約数ペア:

[(1, 8701980), (2, 4350990), (3, 2900660), (4, 2175495), (5, 1740396), (6, 1450330), (7, 1243140), (10, 870198), (12, 725165), (14, 621570), (15, 580132), (20, 435099), (21, 414380), (28, 310785), (30, 290066), (35, 248628), (42, 207190), (60, 145033), (70, 124314), (84, 103595), (105, 82876), (140, 62157), (210, 41438), (420, 20719)]