82721745

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{1523}}^1$

素因数の和:1622

約数の個数: 48

約数和(自身を含む): 154058112

約数和(自身を除く): 71336367

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 71, 85, 153, 213, 255, 355, 639, 765, 1065, 1207, 1523, 3195, 3621, 4569, 6035, 7615, 10863, 13707, 18105, 22845, 25891, 54315, 68535, 77673, 108133, 129455, 233019, 324399, 388365, 540665, 973197, 1165095, 1621995, 1838261, 4865985, 5514783, 9191305, 16544349, 27573915, 82721745]

約数ペア:

[(1, 82721745), (3, 27573915), (5, 16544349), (9, 9191305), (15, 5514783), (17, 4865985), (45, 1838261), (51, 1621995), (71, 1165095), (85, 973197), (153, 540665), (213, 388365), (255, 324399), (355, 233019), (639, 129455), (765, 108133), (1065, 77673), (1207, 68535), (1523, 54315), (3195, 25891), (3621, 22845), (4569, 18105), (6035, 13707), (7615, 10863)]