787720

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{419}}^1$

素因数の和:477

約数の個数: 32

約数和(自身を含む): 1814400

約数和(自身を除く): 1026680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 419, 470, 838, 940, 1676, 1880, 2095, 3352, 4190, 8380, 16760, 19693, 39386, 78772, 98465, 157544, 196930, 393860, 787720]

約数ペア:

[(1, 787720), (2, 393860), (4, 196930), (5, 157544), (8, 98465), (10, 78772), (20, 39386), (40, 19693), (47, 16760), (94, 8380), (188, 4190), (235, 3352), (376, 2095), (419, 1880), (470, 1676), (838, 940)]