18830216

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{43}}^2\times {\mathrm{67}}^1$

素因数の和:178

約数の個数: 48

約数和(自身を含む): 38617200

約数和(自身を除く): 19786984

約数列:

[1, 2, 4, 8, 19, 38, 43, 67, 76, 86, 134, 152, 172, 268, 344, 536, 817, 1273, 1634, 1849, 2546, 2881, 3268, 3698, 5092, 5762, 6536, 7396, 10184, 11524, 14792, 23048, 35131, 54739, 70262, 109478, 123883, 140524, 218956, 247766, 281048, 437912, 495532, 991064, 2353777, 4707554, 9415108, 18830216]

約数ペア:

[(1, 18830216), (2, 9415108), (4, 4707554), (8, 2353777), (19, 991064), (38, 495532), (43, 437912), (67, 281048), (76, 247766), (86, 218956), (134, 140524), (152, 123883), (172, 109478), (268, 70262), (344, 54739), (536, 35131), (817, 23048), (1273, 14792), (1634, 11524), (1849, 10184), (2546, 7396), (2881, 6536), (3268, 5762), (3698, 5092)]