20151172

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{223}}^1$

素因数の和:316

約数の個数: 48

約数和(自身を含む): 39513600

約数和(自身を除く): 19362428

約数列:

[1, 2, 4, 19, 29, 38, 41, 58, 76, 82, 116, 164, 223, 446, 551, 779, 892, 1102, 1189, 1558, 2204, 2378, 3116, 4237, 4756, 6467, 8474, 9143, 12934, 16948, 18286, 22591, 25868, 36572, 45182, 90364, 122873, 173717, 245746, 265147, 347434, 491492, 530294, 694868, 1060588, 5037793, 10075586, 20151172]

約数ペア:

[(1, 20151172), (2, 10075586), (4, 5037793), (19, 1060588), (29, 694868), (38, 530294), (41, 491492), (58, 347434), (76, 265147), (82, 245746), (116, 173717), (164, 122873), (223, 90364), (446, 45182), (551, 36572), (779, 25868), (892, 22591), (1102, 18286), (1189, 16948), (1558, 12934), (2204, 9143), (2378, 8474), (3116, 6467), (4237, 4756)]