199499480

素因数分解:

$2^3\times 5^1\times {\mathrm{1009}}^1\times {\mathrm{4943}}^1$

素因数の和:5963

約数の個数: 32

約数和(自身を含む): 449409600

約数和(自身を除く): 249910120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1009, 2018, 4036, 4943, 5045, 8072, 9886, 10090, 19772, 20180, 24715, 39544, 40360, 49430, 98860, 197720, 4987487, 9974974, 19949948, 24937435, 39899896, 49874870, 99749740, 199499480]

約数ペア:

[(1, 199499480), (2, 99749740), (4, 49874870), (5, 39899896), (8, 24937435), (10, 19949948), (20, 9974974), (40, 4987487), (1009, 197720), (2018, 98860), (4036, 49430), (4943, 40360), (5045, 39544), (8072, 24715), (9886, 20180), (10090, 19772)]