28145740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{1583}}^1$

素因数の和:1726

約数の個数: 48

約数和(自身を含む): 68124672

約数和(自身を除く): 39978932

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 127, 140, 254, 508, 635, 889, 1270, 1583, 1778, 2540, 3166, 3556, 4445, 6332, 7915, 8890, 11081, 15830, 17780, 22162, 31660, 44324, 55405, 110810, 201041, 221620, 402082, 804164, 1005205, 1407287, 2010410, 2814574, 4020820, 5629148, 7036435, 14072870, 28145740]

約数ペア:

[(1, 28145740), (2, 14072870), (4, 7036435), (5, 5629148), (7, 4020820), (10, 2814574), (14, 2010410), (20, 1407287), (28, 1005205), (35, 804164), (70, 402082), (127, 221620), (140, 201041), (254, 110810), (508, 55405), (635, 44324), (889, 31660), (1270, 22162), (1583, 17780), (1778, 15830), (2540, 11081), (3166, 8890), (3556, 7915), (4445, 6332)]