19680200

素因数分解:

$2^3\times 5^2\times {\mathrm{19}}^1\times {\mathrm{5179}}^1$

素因数の和:5214

約数の個数: 48

約数和(自身を含む): 48174000

約数和(自身を除く): 28493800

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 25, 38, 40, 50, 76, 95, 100, 152, 190, 200, 380, 475, 760, 950, 1900, 3800, 5179, 10358, 20716, 25895, 41432, 51790, 98401, 103580, 129475, 196802, 207160, 258950, 393604, 492005, 517900, 787208, 984010, 1035800, 1968020, 2460025, 3936040, 4920050, 9840100, 19680200]

約数ペア:

[(1, 19680200), (2, 9840100), (4, 4920050), (5, 3936040), (8, 2460025), (10, 1968020), (19, 1035800), (20, 984010), (25, 787208), (38, 517900), (40, 492005), (50, 393604), (76, 258950), (95, 207160), (100, 196802), (152, 129475), (190, 103580), (200, 98401), (380, 51790), (475, 41432), (760, 25895), (950, 20716), (1900, 10358), (3800, 5179)]