8167840

素因数分解:

$2^5\times 5^1\times {\mathrm{71}}^1\times {\mathrm{719}}^1$

素因数の和:805

約数の個数: 48

約数和(自身を含む): 19595520

約数和(自身を除く): 11427680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 71, 80, 142, 160, 284, 355, 568, 710, 719, 1136, 1420, 1438, 2272, 2840, 2876, 3595, 5680, 5752, 7190, 11360, 11504, 14380, 23008, 28760, 51049, 57520, 102098, 115040, 204196, 255245, 408392, 510490, 816784, 1020980, 1633568, 2041960, 4083920, 8167840]

約数ペア:

[(1, 8167840), (2, 4083920), (4, 2041960), (5, 1633568), (8, 1020980), (10, 816784), (16, 510490), (20, 408392), (32, 255245), (40, 204196), (71, 115040), (80, 102098), (142, 57520), (160, 51049), (284, 28760), (355, 23008), (568, 14380), (710, 11504), (719, 11360), (1136, 7190), (1420, 5752), (1438, 5680), (2272, 3595), (2840, 2876)]