28823480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{311}}^1\times {\mathrm{331}}^1$

素因数の和:660

約数の個数: 64

約数和(自身を含む): 74580480

約数和(自身を除く): 45757000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 311, 331, 622, 662, 1244, 1324, 1555, 1655, 2177, 2317, 2488, 2648, 3110, 3310, 4354, 4634, 6220, 6620, 8708, 9268, 10885, 11585, 12440, 13240, 17416, 18536, 21770, 23170, 43540, 46340, 87080, 92680, 102941, 205882, 411764, 514705, 720587, 823528, 1029410, 1441174, 2058820, 2882348, 3602935, 4117640, 5764696, 7205870, 14411740, 28823480]

約数ペア:

[(1, 28823480), (2, 14411740), (4, 7205870), (5, 5764696), (7, 4117640), (8, 3602935), (10, 2882348), (14, 2058820), (20, 1441174), (28, 1029410), (35, 823528), (40, 720587), (56, 514705), (70, 411764), (140, 205882), (280, 102941), (311, 92680), (331, 87080), (622, 46340), (662, 43540), (1244, 23170), (1324, 21770), (1555, 18536), (1655, 17416), (2177, 13240), (2317, 12440), (2488, 11585), (2648, 10885), (3110, 9268), (3310, 8708), (4354, 6620), (4634, 6220)]