78720800

素因数分解:

$2^5\times 5^2\times {\mathrm{19}}^1\times {\mathrm{5179}}^1$

素因数の和:5218

約数の個数: 72

約数和(自身を含む): 202330800

約数和(自身を除く): 123610000

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 32, 38, 40, 50, 76, 80, 95, 100, 152, 160, 190, 200, 304, 380, 400, 475, 608, 760, 800, 950, 1520, 1900, 3040, 3800, 5179, 7600, 10358, 15200, 20716, 25895, 41432, 51790, 82864, 98401, 103580, 129475, 165728, 196802, 207160, 258950, 393604, 414320, 492005, 517900, 787208, 828640, 984010, 1035800, 1574416, 1968020, 2071600, 2460025, 3148832, 3936040, 4143200, 4920050, 7872080, 9840100, 15744160, 19680200, 39360400, 78720800]

約数ペア:

[(1, 78720800), (2, 39360400), (4, 19680200), (5, 15744160), (8, 9840100), (10, 7872080), (16, 4920050), (19, 4143200), (20, 3936040), (25, 3148832), (32, 2460025), (38, 2071600), (40, 1968020), (50, 1574416), (76, 1035800), (80, 984010), (95, 828640), (100, 787208), (152, 517900), (160, 492005), (190, 414320), (200, 393604), (304, 258950), (380, 207160), (400, 196802), (475, 165728), (608, 129475), (760, 103580), (800, 98401), (950, 82864), (1520, 51790), (1900, 41432), (3040, 25895), (3800, 20716), (5179, 15200), (7600, 10358)]