18973640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{67763}}^1$

素因数の和:67781

約数の個数: 32

約数和(自身を含む): 48790080

約数和(自身を除く): 29816440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 67763, 135526, 271052, 338815, 474341, 542104, 677630, 948682, 1355260, 1897364, 2371705, 2710520, 3794728, 4743410, 9486820, 18973640]

約数ペア:

[(1, 18973640), (2, 9486820), (4, 4743410), (5, 3794728), (7, 2710520), (8, 2371705), (10, 1897364), (14, 1355260), (20, 948682), (28, 677630), (35, 542104), (40, 474341), (56, 338815), (70, 271052), (140, 135526), (280, 67763)]