78743990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{20887}}^1$

素因数の和:20936

約数の個数: 32

約数和(自身を含む): 157913280

約数和(自身を除く): 79169290

約数列:

[1, 2, 5, 10, 13, 26, 29, 58, 65, 130, 145, 290, 377, 754, 1885, 3770, 20887, 41774, 104435, 208870, 271531, 543062, 605723, 1211446, 1357655, 2715310, 3028615, 6057230, 7874399, 15748798, 39371995, 78743990]

約数ペア:

[(1, 78743990), (2, 39371995), (5, 15748798), (10, 7874399), (13, 6057230), (26, 3028615), (29, 2715310), (58, 1357655), (65, 1211446), (130, 605723), (145, 543062), (290, 271531), (377, 208870), (754, 104435), (1885, 41774), (3770, 20887)]