28640415

素因数分解:

$3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{113}}^1\times {\mathrm{277}}^1$

素因数の和:459

約数の個数: 32

約数和(自身を含む): 47157696

約数和(自身を除く): 18517281

約数列:

[1, 3, 5, 15, 61, 113, 183, 277, 305, 339, 565, 831, 915, 1385, 1695, 4155, 6893, 16897, 20679, 31301, 34465, 50691, 84485, 93903, 103395, 156505, 253455, 469515, 1909361, 5728083, 9546805, 28640415]

約数ペア:

[(1, 28640415), (3, 9546805), (5, 5728083), (15, 1909361), (61, 469515), (113, 253455), (183, 156505), (277, 103395), (305, 93903), (339, 84485), (565, 50691), (831, 34465), (915, 31301), (1385, 20679), (1695, 16897), (4155, 6893)]