257622261

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{103}}^1\times {\mathrm{1087}}^1$

素因数の和:1265

約数の個数: 32

約数和(自身を含む): 380190720

約数和(自身を除く): 122568459

約数列:

[1, 3, 13, 39, 59, 103, 177, 309, 767, 1087, 1339, 2301, 3261, 4017, 6077, 14131, 18231, 42393, 64133, 79001, 111961, 192399, 237003, 335883, 833729, 1455493, 2501187, 4366479, 6605699, 19817097, 85874087, 257622261]

約数ペア:

[(1, 257622261), (3, 85874087), (13, 19817097), (39, 6605699), (59, 4366479), (103, 2501187), (177, 1455493), (309, 833729), (767, 335883), (1087, 237003), (1339, 192399), (2301, 111961), (3261, 79001), (4017, 64133), (6077, 42393), (14131, 18231)]