858950

素因数分解:

$2^1\times 5^2\times {\mathrm{41}}^1\times {\mathrm{419}}^1$

素因数の和:472

約数の個数: 24

約数和(自身を含む): 1640520

約数和(自身を除く): 781570

約数列:

[1, 2, 5, 10, 25, 41, 50, 82, 205, 410, 419, 838, 1025, 2050, 2095, 4190, 10475, 17179, 20950, 34358, 85895, 171790, 429475, 858950]

約数ペア:

[(1, 858950), (2, 429475), (5, 171790), (10, 85895), (25, 34358), (41, 20950), (50, 17179), (82, 10475), (205, 4190), (410, 2095), (419, 2050), (838, 1025)]