217870156

素因数分解:

$2^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{157}}^1\times {\mathrm{1709}}^1$

素因数の和:1906

約数の個数: 48

約数和(自身を含む): 453902400

約数和(自身を除く): 236032244

約数列:

[1, 2, 4, 7, 14, 28, 29, 58, 116, 157, 203, 314, 406, 628, 812, 1099, 1709, 2198, 3418, 4396, 4553, 6836, 9106, 11963, 18212, 23926, 31871, 47852, 49561, 63742, 99122, 127484, 198244, 268313, 346927, 536626, 693854, 1073252, 1387708, 1878191, 3756382, 7512764, 7781077, 15562154, 31124308, 54467539, 108935078, 217870156]

約数ペア:

[(1, 217870156), (2, 108935078), (4, 54467539), (7, 31124308), (14, 15562154), (28, 7781077), (29, 7512764), (58, 3756382), (116, 1878191), (157, 1387708), (203, 1073252), (314, 693854), (406, 536626), (628, 346927), (812, 268313), (1099, 198244), (1709, 127484), (2198, 99122), (3418, 63742), (4396, 49561), (4553, 47852), (6836, 31871), (9106, 23926), (11963, 18212)]