18612664

素因数分解:

$2^3\times 7^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{157}}^1$

素因数の和:272

約数の個数: 64

約数和(自身を含む): 42091200

約数和(自身を除く): 23478536

約数列:

[1, 2, 4, 7, 8, 14, 28, 29, 56, 58, 73, 116, 146, 157, 203, 232, 292, 314, 406, 511, 584, 628, 812, 1022, 1099, 1256, 1624, 2044, 2117, 2198, 4088, 4234, 4396, 4553, 8468, 8792, 9106, 11461, 14819, 16936, 18212, 22922, 29638, 31871, 36424, 45844, 59276, 63742, 80227, 91688, 118552, 127484, 160454, 254968, 320908, 332369, 641816, 664738, 1329476, 2326583, 2658952, 4653166, 9306332, 18612664]

約数ペア:

[(1, 18612664), (2, 9306332), (4, 4653166), (7, 2658952), (8, 2326583), (14, 1329476), (28, 664738), (29, 641816), (56, 332369), (58, 320908), (73, 254968), (116, 160454), (146, 127484), (157, 118552), (203, 91688), (232, 80227), (292, 63742), (314, 59276), (406, 45844), (511, 36424), (584, 31871), (628, 29638), (812, 22922), (1022, 18212), (1099, 16936), (1256, 14819), (1624, 11461), (2044, 9106), (2117, 8792), (2198, 8468), (4088, 4553), (4234, 4396)]