199065620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{613}}^1\times {\mathrm{1249}}^1$

素因数の和:1884

約数の個数: 48

約数和(自身を含む): 451290000

約数和(自身を除く): 252224380

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 613, 1226, 1249, 2452, 2498, 3065, 4996, 6130, 6245, 7969, 12260, 12490, 15938, 16237, 24980, 31876, 32474, 39845, 64948, 79690, 81185, 159380, 162370, 324740, 765637, 1531274, 3062548, 3828185, 7656370, 9953281, 15312740, 19906562, 39813124, 49766405, 99532810, 199065620]

約数ペア:

[(1, 199065620), (2, 99532810), (4, 49766405), (5, 39813124), (10, 19906562), (13, 15312740), (20, 9953281), (26, 7656370), (52, 3828185), (65, 3062548), (130, 1531274), (260, 765637), (613, 324740), (1226, 162370), (1249, 159380), (2452, 81185), (2498, 79690), (3065, 64948), (4996, 39845), (6130, 32474), (6245, 31876), (7969, 24980), (12260, 16237), (12490, 15938)]