289752970

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{71899}}^1$

素因数の和:71950

約数の個数: 32

約数和(自身を含む): 579801600

約数和(自身を除く): 290048630

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 71899, 143798, 359495, 718990, 934687, 1869374, 2228869, 4457738, 4673435, 9346870, 11144345, 22288690, 28975297, 57950594, 144876485, 289752970]

約数ペア:

[(1, 289752970), (2, 144876485), (5, 57950594), (10, 28975297), (13, 22288690), (26, 11144345), (31, 9346870), (62, 4673435), (65, 4457738), (130, 2228869), (155, 1869374), (310, 934687), (403, 718990), (806, 359495), (2015, 143798), (4030, 71899)]