2079656740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{209221}}^1$

素因数の和:209308

約数の個数: 48

約数和(自身を含む): 5061498624

約数和(自身を除く): 2981841884

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 497, 710, 994, 1420, 1988, 2485, 4970, 9940, 209221, 418442, 836884, 1046105, 1464547, 2092210, 2929094, 4184420, 5858188, 7322735, 14645470, 14854691, 29290940, 29709382, 59418764, 74273455, 103982837, 148546910, 207965674, 297093820, 415931348, 519914185, 1039828370, 2079656740]

約数ペア:

[(1, 2079656740), (2, 1039828370), (4, 519914185), (5, 415931348), (7, 297093820), (10, 207965674), (14, 148546910), (20, 103982837), (28, 74273455), (35, 59418764), (70, 29709382), (71, 29290940), (140, 14854691), (142, 14645470), (284, 7322735), (355, 5858188), (497, 4184420), (710, 2929094), (994, 2092210), (1420, 1464547), (1988, 1046105), (2485, 836884), (4970, 418442), (9940, 209221)]