102804920

素因数分解:

$2^3\times 5^1\times {\mathrm{389}}^1\times {\mathrm{6607}}^1$

素因数の和:7007

約数の個数: 32

約数和(自身を含む): 231940800

約数和(自身を除く): 129135880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 389, 778, 1556, 1945, 3112, 3890, 6607, 7780, 13214, 15560, 26428, 33035, 52856, 66070, 132140, 264280, 2570123, 5140246, 10280492, 12850615, 20560984, 25701230, 51402460, 102804920]

約数ペア:

[(1, 102804920), (2, 51402460), (4, 25701230), (5, 20560984), (8, 12850615), (10, 10280492), (20, 5140246), (40, 2570123), (389, 264280), (778, 132140), (1556, 66070), (1945, 52856), (3112, 33035), (3890, 26428), (6607, 15560), (7780, 13214)]