28117900

素因数分解:

$2^2\times 5^2\times {\mathrm{317}}^1\times {\mathrm{887}}^1$

素因数の和:1218

約数の個数: 36

約数和(自身を含む): 61277328

約数和(自身を除く): 33159428

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 317, 634, 887, 1268, 1585, 1774, 3170, 3548, 4435, 6340, 7925, 8870, 15850, 17740, 22175, 31700, 44350, 88700, 281179, 562358, 1124716, 1405895, 2811790, 5623580, 7029475, 14058950, 28117900]

約数ペア:

[(1, 28117900), (2, 14058950), (4, 7029475), (5, 5623580), (10, 2811790), (20, 1405895), (25, 1124716), (50, 562358), (100, 281179), (317, 88700), (634, 44350), (887, 31700), (1268, 22175), (1585, 17740), (1774, 15850), (3170, 8870), (3548, 7925), (4435, 6340)]