128149970

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{31799}}^1$

素因数の和:31850

約数の個数: 32

約数和(自身を含む): 256435200

約数和(自身を除く): 128285230

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 31799, 63598, 158995, 317990, 413387, 826774, 985769, 1971538, 2066935, 4133870, 4928845, 9857690, 12814997, 25629994, 64074985, 128149970]

約数ペア:

[(1, 128149970), (2, 64074985), (5, 25629994), (10, 12814997), (13, 9857690), (26, 4928845), (31, 4133870), (62, 2066935), (65, 1971538), (130, 985769), (155, 826774), (310, 413387), (403, 317990), (806, 158995), (2015, 63598), (4030, 31799)]