20883380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{3469}}^1$

素因数の和:3528

約数の個数: 48

約数和(自身を含む): 51300480

約数和(自身を除く): 30417100

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 43, 70, 86, 140, 172, 215, 301, 430, 602, 860, 1204, 1505, 3010, 3469, 6020, 6938, 13876, 17345, 24283, 34690, 48566, 69380, 97132, 121415, 149167, 242830, 298334, 485660, 596668, 745835, 1044169, 1491670, 2088338, 2983340, 4176676, 5220845, 10441690, 20883380]

約数ペア:

[(1, 20883380), (2, 10441690), (4, 5220845), (5, 4176676), (7, 2983340), (10, 2088338), (14, 1491670), (20, 1044169), (28, 745835), (35, 596668), (43, 485660), (70, 298334), (86, 242830), (140, 149167), (172, 121415), (215, 97132), (301, 69380), (430, 48566), (602, 34690), (860, 24283), (1204, 17345), (1505, 13876), (3010, 6938), (3469, 6020)]