128439753

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1$

素因数の和:246

約数の個数: 64

約数和(自身を含む): 206976000

約数和(自身を除く): 78536247

約数列:

[1, 3, 13, 19, 29, 39, 43, 57, 87, 129, 139, 247, 377, 417, 551, 559, 741, 817, 1131, 1247, 1653, 1677, 1807, 2451, 2641, 3741, 4031, 5421, 5977, 7163, 7923, 10621, 12093, 16211, 17931, 21489, 23693, 31863, 34333, 48633, 52403, 71079, 76589, 77701, 102999, 113563, 157209, 173333, 229767, 233103, 308009, 340689, 519999, 924027, 995657, 1476319, 2253329, 2986971, 3293327, 4428957, 6759987, 9879981, 42813251, 128439753]

約数ペア:

[(1, 128439753), (3, 42813251), (13, 9879981), (19, 6759987), (29, 4428957), (39, 3293327), (43, 2986971), (57, 2253329), (87, 1476319), (129, 995657), (139, 924027), (247, 519999), (377, 340689), (417, 308009), (551, 233103), (559, 229767), (741, 173333), (817, 157209), (1131, 113563), (1247, 102999), (1653, 77701), (1677, 76589), (1807, 71079), (2451, 52403), (2641, 48633), (3741, 34333), (4031, 31863), (5421, 23693), (5977, 21489), (7163, 17931), (7923, 16211), (10621, 12093)]