28771480

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{1459}}^1$

素因数の和:1516

約数の個数: 64

約数和(自身を含む): 70956000

約数和(自身を除く): 42184520

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 29, 34, 40, 58, 68, 85, 116, 136, 145, 170, 232, 290, 340, 493, 580, 680, 986, 1160, 1459, 1972, 2465, 2918, 3944, 4930, 5836, 7295, 9860, 11672, 14590, 19720, 24803, 29180, 42311, 49606, 58360, 84622, 99212, 124015, 169244, 198424, 211555, 248030, 338488, 423110, 496060, 719287, 846220, 992120, 1438574, 1692440, 2877148, 3596435, 5754296, 7192870, 14385740, 28771480]

約数ペア:

[(1, 28771480), (2, 14385740), (4, 7192870), (5, 5754296), (8, 3596435), (10, 2877148), (17, 1692440), (20, 1438574), (29, 992120), (34, 846220), (40, 719287), (58, 496060), (68, 423110), (85, 338488), (116, 248030), (136, 211555), (145, 198424), (170, 169244), (232, 124015), (290, 99212), (340, 84622), (493, 58360), (580, 49606), (680, 42311), (986, 29180), (1160, 24803), (1459, 19720), (1972, 14590), (2465, 11672), (2918, 9860), (3944, 7295), (4930, 5836)]