28318180

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{1327}}^1$

素因数の和:1444

約数の個数: 48

約数和(自身を含む): 65592576

約数和(自身を除く): 37274396

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 97, 110, 194, 220, 388, 485, 970, 1067, 1327, 1940, 2134, 2654, 4268, 5308, 5335, 6635, 10670, 13270, 14597, 21340, 26540, 29194, 58388, 72985, 128719, 145970, 257438, 291940, 514876, 643595, 1287190, 1415909, 2574380, 2831818, 5663636, 7079545, 14159090, 28318180]

約数ペア:

[(1, 28318180), (2, 14159090), (4, 7079545), (5, 5663636), (10, 2831818), (11, 2574380), (20, 1415909), (22, 1287190), (44, 643595), (55, 514876), (97, 291940), (110, 257438), (194, 145970), (220, 128719), (388, 72985), (485, 58388), (970, 29194), (1067, 26540), (1327, 21340), (1940, 14597), (2134, 13270), (2654, 10670), (4268, 6635), (5308, 5335)]