20247080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{167}}^1\times {\mathrm{433}}^1$

素因数の和:618

約数の個数: 64

約数和(自身を含む): 52496640

約数和(自身を除く): 32249560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 167, 280, 334, 433, 668, 835, 866, 1169, 1336, 1670, 1732, 2165, 2338, 3031, 3340, 3464, 4330, 4676, 5845, 6062, 6680, 8660, 9352, 11690, 12124, 15155, 17320, 23380, 24248, 30310, 46760, 60620, 72311, 121240, 144622, 289244, 361555, 506177, 578488, 723110, 1012354, 1446220, 2024708, 2530885, 2892440, 4049416, 5061770, 10123540, 20247080]

約数ペア:

[(1, 20247080), (2, 10123540), (4, 5061770), (5, 4049416), (7, 2892440), (8, 2530885), (10, 2024708), (14, 1446220), (20, 1012354), (28, 723110), (35, 578488), (40, 506177), (56, 361555), (70, 289244), (140, 144622), (167, 121240), (280, 72311), (334, 60620), (433, 46760), (668, 30310), (835, 24248), (866, 23380), (1169, 17320), (1336, 15155), (1670, 12124), (1732, 11690), (2165, 9352), (2338, 8660), (3031, 6680), (3340, 6062), (3464, 5845), (4330, 4676)]