20138216

素因数分解:

$2^3\times 7^3\times {\mathrm{41}}^1\times {\mathrm{179}}^1$

素因数の和:247

約数の個数: 64

約数和(自身を含む): 45360000

約数和(自身を除く): 25221784

約数列:

[1, 2, 4, 7, 8, 14, 28, 41, 49, 56, 82, 98, 164, 179, 196, 287, 328, 343, 358, 392, 574, 686, 716, 1148, 1253, 1372, 1432, 2009, 2296, 2506, 2744, 4018, 5012, 7339, 8036, 8771, 10024, 14063, 14678, 16072, 17542, 28126, 29356, 35084, 51373, 56252, 58712, 61397, 70168, 102746, 112504, 122794, 205492, 245588, 359611, 410984, 491176, 719222, 1438444, 2517277, 2876888, 5034554, 10069108, 20138216]

約数ペア:

[(1, 20138216), (2, 10069108), (4, 5034554), (7, 2876888), (8, 2517277), (14, 1438444), (28, 719222), (41, 491176), (49, 410984), (56, 359611), (82, 245588), (98, 205492), (164, 122794), (179, 112504), (196, 102746), (287, 70168), (328, 61397), (343, 58712), (358, 56252), (392, 51373), (574, 35084), (686, 29356), (716, 28126), (1148, 17542), (1253, 16072), (1372, 14678), (1432, 14063), (2009, 10024), (2296, 8771), (2506, 8036), (2744, 7339), (4018, 5012)]