15295480

素因数分解:

$2^3\times 5^1\times {\mathrm{389}}^1\times {\mathrm{983}}^1$

素因数の和:1383

約数の個数: 32

約数和(自身を含む): 34538400

約数和(自身を除く): 19242920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 389, 778, 983, 1556, 1945, 1966, 3112, 3890, 3932, 4915, 7780, 7864, 9830, 15560, 19660, 39320, 382387, 764774, 1529548, 1911935, 3059096, 3823870, 7647740, 15295480]

約数ペア:

[(1, 15295480), (2, 7647740), (4, 3823870), (5, 3059096), (8, 1911935), (10, 1529548), (20, 764774), (40, 382387), (389, 39320), (778, 19660), (983, 15560), (1556, 9830), (1945, 7864), (1966, 7780), (3112, 4915), (3890, 3932)]