28156900

素因数分解:

$2^2\times 5^2\times {\mathrm{271}}^1\times {\mathrm{1039}}^1$

素因数の和:1324

約数の個数: 36

約数和(自身を含む): 61384960

約数和(自身を除く): 33228060

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 271, 542, 1039, 1084, 1355, 2078, 2710, 4156, 5195, 5420, 6775, 10390, 13550, 20780, 25975, 27100, 51950, 103900, 281569, 563138, 1126276, 1407845, 2815690, 5631380, 7039225, 14078450, 28156900]

約数ペア:

[(1, 28156900), (2, 14078450), (4, 7039225), (5, 5631380), (10, 2815690), (20, 1407845), (25, 1126276), (50, 563138), (100, 281569), (271, 103900), (542, 51950), (1039, 27100), (1084, 25975), (1355, 20780), (2078, 13550), (2710, 10390), (4156, 6775), (5195, 5420)]