18102728

素因数分解:

$2^3\times 7^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{157}}^1$

素因数の和:270

約数の個数: 64

約数和(自身を含む): 40953600

約数和(自身を除く): 22850872

約数列:

[1, 2, 4, 7, 8, 14, 28, 29, 56, 58, 71, 116, 142, 157, 203, 232, 284, 314, 406, 497, 568, 628, 812, 994, 1099, 1256, 1624, 1988, 2059, 2198, 3976, 4118, 4396, 4553, 8236, 8792, 9106, 11147, 14413, 16472, 18212, 22294, 28826, 31871, 36424, 44588, 57652, 63742, 78029, 89176, 115304, 127484, 156058, 254968, 312116, 323263, 624232, 646526, 1293052, 2262841, 2586104, 4525682, 9051364, 18102728]

約数ペア:

[(1, 18102728), (2, 9051364), (4, 4525682), (7, 2586104), (8, 2262841), (14, 1293052), (28, 646526), (29, 624232), (56, 323263), (58, 312116), (71, 254968), (116, 156058), (142, 127484), (157, 115304), (203, 89176), (232, 78029), (284, 63742), (314, 57652), (406, 44588), (497, 36424), (568, 31871), (628, 28826), (812, 22294), (994, 18212), (1099, 16472), (1256, 14413), (1624, 11147), (1988, 9106), (2059, 8792), (2198, 8236), (3976, 4553), (4118, 4396)]