638049751587

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{26951}}^1\times {\mathrm{15383}}^1$

素因数の和:42365

約数の個数: 40

約数和(自身を含む): 1003403554560

約数和(自身を除く): 365353802973

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 15383, 26951, 46149, 80853, 138447, 242559, 292277, 415341, 512069, 727677, 876831, 1246023, 1536207, 2183031, 2630493, 4608621, 7891479, 13825863, 23674437, 41477589, 414587233, 1243761699, 3731285097, 7877157427, 11193855291, 23631472281, 33581565873, 70894416843, 212683250529, 638049751587]

約数ペア:

[(1, 638049751587), (3, 212683250529), (9, 70894416843), (19, 33581565873), (27, 23631472281), (57, 11193855291), (81, 7877157427), (171, 3731285097), (513, 1243761699), (1539, 414587233), (15383, 41477589), (26951, 23674437), (46149, 13825863), (80853, 7891479), (138447, 4608621), (242559, 2630493), (292277, 2183031), (415341, 1536207), (512069, 1246023), (727677, 876831)]