20353732

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{179}}^1$

素因数の和:352

約数の個数: 48

約数和(自身を含む): 42577920

約数和(自身を除く): 22224188

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 131, 179, 217, 262, 358, 434, 524, 716, 868, 917, 1253, 1834, 2506, 3668, 4061, 5012, 5549, 8122, 11098, 16244, 22196, 23449, 28427, 38843, 46898, 56854, 77686, 93796, 113708, 155372, 164143, 328286, 656572, 726919, 1453838, 2907676, 5088433, 10176866, 20353732]

約数ペア:

[(1, 20353732), (2, 10176866), (4, 5088433), (7, 2907676), (14, 1453838), (28, 726919), (31, 656572), (62, 328286), (124, 164143), (131, 155372), (179, 113708), (217, 93796), (262, 77686), (358, 56854), (434, 46898), (524, 38843), (716, 28427), (868, 23449), (917, 22196), (1253, 16244), (1834, 11098), (2506, 8122), (3668, 5549), (4061, 5012)]