28750990

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{389}}^2$

素因数の和:804

約数の個数: 24

約数和(自身を含む): 54615960

約数和(自身を除く): 25864970

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 389, 778, 1945, 3890, 7391, 14782, 36955, 73910, 151321, 302642, 756605, 1513210, 2875099, 5750198, 14375495, 28750990]

約数ペア:

[(1, 28750990), (2, 14375495), (5, 5750198), (10, 2875099), (19, 1513210), (38, 756605), (95, 302642), (190, 151321), (389, 73910), (778, 36955), (1945, 14782), (3890, 7391)]