201567980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{20443}}^1$

素因数の和:20498

約数の個数: 48

約数和(自身を含む): 463669920

約数和(自身を除く): 262101940

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, 4930, 9860, 20443, 40886, 81772, 102215, 204430, 347531, 408860, 592847, 695062, 1185694, 1390124, 1737655, 2371388, 2964235, 3475310, 5928470, 6950620, 10078399, 11856940, 20156798, 40313596, 50391995, 100783990, 201567980]

約数ペア:

[(1, 201567980), (2, 100783990), (4, 50391995), (5, 40313596), (10, 20156798), (17, 11856940), (20, 10078399), (29, 6950620), (34, 5928470), (58, 3475310), (68, 2964235), (85, 2371388), (116, 1737655), (145, 1390124), (170, 1185694), (290, 695062), (340, 592847), (493, 408860), (580, 347531), (986, 204430), (1972, 102215), (2465, 81772), (4930, 40886), (9860, 20443)]