20790787640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{74252813}}^1$

素因数の和:74252831

約数の個数: 32

約数和(自身を含む): 53462026080

約数和(自身を除く): 32671238440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 74252813, 148505626, 297011252, 371264065, 519769691, 594022504, 742528130, 1039539382, 1485056260, 2079078764, 2598848455, 2970112520, 4158157528, 5197696910, 10395393820, 20790787640]

約数ペア:

[(1, 20790787640), (2, 10395393820), (4, 5197696910), (5, 4158157528), (7, 2970112520), (8, 2598848455), (10, 2079078764), (14, 1485056260), (20, 1039539382), (28, 742528130), (35, 594022504), (40, 519769691), (56, 371264065), (70, 297011252), (140, 148505626), (280, 74252813)]