20460680

素因数分解:

$2^3\times 5^1\times {\mathrm{149}}^1\times {\mathrm{3433}}^1$

素因数の和:3593

約数の個数: 32

約数和(自身を含む): 46359000

約数和(自身を除く): 25898320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 149, 298, 596, 745, 1192, 1490, 2980, 3433, 5960, 6866, 13732, 17165, 27464, 34330, 68660, 137320, 511517, 1023034, 2046068, 2557585, 4092136, 5115170, 10230340, 20460680]

約数ペア:

[(1, 20460680), (2, 10230340), (4, 5115170), (5, 4092136), (8, 2557585), (10, 2046068), (20, 1023034), (40, 511517), (149, 137320), (298, 68660), (596, 34330), (745, 27464), (1192, 17165), (1490, 13732), (2980, 6866), (3433, 5960)]