28290052

素因数分解:

$2^2\times 7^2\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{83}}^1$

素因数の和:185

約数の個数: 72

約数和(自身を含む): 61133184

約数和(自身を除く): 32843132

約数列:

[1, 2, 4, 7, 14, 28, 37, 47, 49, 74, 83, 94, 98, 148, 166, 188, 196, 259, 329, 332, 518, 581, 658, 1036, 1162, 1316, 1739, 1813, 2303, 2324, 3071, 3478, 3626, 3901, 4067, 4606, 6142, 6956, 7252, 7802, 8134, 9212, 12173, 12284, 15604, 16268, 21497, 24346, 27307, 42994, 48692, 54614, 85211, 85988, 109228, 144337, 150479, 170422, 191149, 288674, 300958, 340844, 382298, 577348, 601916, 764596, 1010359, 2020718, 4041436, 7072513, 14145026, 28290052]

約数ペア:

[(1, 28290052), (2, 14145026), (4, 7072513), (7, 4041436), (14, 2020718), (28, 1010359), (37, 764596), (47, 601916), (49, 577348), (74, 382298), (83, 340844), (94, 300958), (98, 288674), (148, 191149), (166, 170422), (188, 150479), (196, 144337), (259, 109228), (329, 85988), (332, 85211), (518, 54614), (581, 48692), (658, 42994), (1036, 27307), (1162, 24346), (1316, 21497), (1739, 16268), (1813, 15604), (2303, 12284), (2324, 12173), (3071, 9212), (3478, 8134), (3626, 7802), (3901, 7252), (4067, 6956), (4606, 6142)]