28687148

素因数分解:

$2^2\times 7^4\times {\mathrm{29}}^1\times {\mathrm{103}}^1$

素因数の和:164

約数の個数: 60

約数和(自身を含む): 61173840

約数和(自身を除く): 32486692

約数列:

[1, 2, 4, 7, 14, 28, 29, 49, 58, 98, 103, 116, 196, 203, 206, 343, 406, 412, 686, 721, 812, 1372, 1421, 1442, 2401, 2842, 2884, 2987, 4802, 5047, 5684, 5974, 9604, 9947, 10094, 11948, 19894, 20188, 20909, 35329, 39788, 41818, 69629, 70658, 83636, 139258, 141316, 146363, 247303, 278516, 292726, 494606, 585452, 989212, 1024541, 2049082, 4098164, 7171787, 14343574, 28687148]

約数ペア:

[(1, 28687148), (2, 14343574), (4, 7171787), (7, 4098164), (14, 2049082), (28, 1024541), (29, 989212), (49, 585452), (58, 494606), (98, 292726), (103, 278516), (116, 247303), (196, 146363), (203, 141316), (206, 139258), (343, 83636), (406, 70658), (412, 69629), (686, 41818), (721, 39788), (812, 35329), (1372, 20909), (1421, 20188), (1442, 19894), (2401, 11948), (2842, 10094), (2884, 9947), (2987, 9604), (4802, 5974), (5047, 5684)]