13143320

素因数分解:

$2^3\times 5^1\times {\mathrm{457}}^1\times {\mathrm{719}}^1$

素因数の和:1187

約数の個数: 32

約数和(自身を含む): 29678400

約数和(自身を除く): 16535080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 457, 719, 914, 1438, 1828, 2285, 2876, 3595, 3656, 4570, 5752, 7190, 9140, 14380, 18280, 28760, 328583, 657166, 1314332, 1642915, 2628664, 3285830, 6571660, 13143320]

約数ペア:

[(1, 13143320), (2, 6571660), (4, 3285830), (5, 2628664), (8, 1642915), (10, 1314332), (20, 657166), (40, 328583), (457, 28760), (719, 18280), (914, 14380), (1438, 9140), (1828, 7190), (2285, 5752), (2876, 4570), (3595, 3656)]