8137880

素因数分解:

$2^3\times 5^1\times {\mathrm{389}}^1\times {\mathrm{523}}^1$

素因数の和:923

約数の個数: 32

約数和(自身を含む): 18392400

約数和(自身を除く): 10254520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 389, 523, 778, 1046, 1556, 1945, 2092, 2615, 3112, 3890, 4184, 5230, 7780, 10460, 15560, 20920, 203447, 406894, 813788, 1017235, 1627576, 2034470, 4068940, 8137880]

約数ペア:

[(1, 8137880), (2, 4068940), (4, 2034470), (5, 1627576), (8, 1017235), (10, 813788), (20, 406894), (40, 203447), (389, 20920), (523, 15560), (778, 10460), (1046, 7780), (1556, 5230), (1945, 4184), (2092, 3890), (2615, 3112)]