1970045

素因数分解:

$5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1$

素因数の和:90

約数の個数: 48

約数和(自身を含む): 3250368

約数和(自身を除く): 1280323

約数列:

[1, 5, 7, 11, 17, 35, 43, 49, 55, 77, 85, 119, 187, 215, 245, 301, 385, 473, 539, 595, 731, 833, 935, 1309, 1505, 2107, 2365, 2695, 3311, 3655, 4165, 5117, 6545, 8041, 9163, 10535, 16555, 23177, 25585, 35819, 40205, 45815, 56287, 115885, 179095, 281435, 394009, 1970045]

約数ペア:

[(1, 1970045), (5, 394009), (7, 281435), (11, 179095), (17, 115885), (35, 56287), (43, 45815), (49, 40205), (55, 35819), (77, 25585), (85, 23177), (119, 16555), (187, 10535), (215, 9163), (245, 8041), (301, 6545), (385, 5117), (473, 4165), (539, 3655), (595, 3311), (731, 2695), (833, 2365), (935, 2107), (1309, 1505)]