28978540

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{2939}}^1$

素因数の和:2994

約数の個数: 48

約数和(自身を含む): 66679200

約数和(自身を除く): 37700660

約数列:

[1, 2, 4, 5, 10, 17, 20, 29, 34, 58, 68, 85, 116, 145, 170, 290, 340, 493, 580, 986, 1972, 2465, 2939, 4930, 5878, 9860, 11756, 14695, 29390, 49963, 58780, 85231, 99926, 170462, 199852, 249815, 340924, 426155, 499630, 852310, 999260, 1448927, 1704620, 2897854, 5795708, 7244635, 14489270, 28978540]

約数ペア:

[(1, 28978540), (2, 14489270), (4, 7244635), (5, 5795708), (10, 2897854), (17, 1704620), (20, 1448927), (29, 999260), (34, 852310), (58, 499630), (68, 426155), (85, 340924), (116, 249815), (145, 199852), (170, 170462), (290, 99926), (340, 85231), (493, 58780), (580, 49963), (986, 29390), (1972, 14695), (2465, 11756), (2939, 9860), (4930, 5878)]