9979660

素因数分解:

$2^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{3929}}^1$

素因数の和:4065

約数の個数: 24

約数和(自身を含む): 21127680

約数和(自身を除く): 11148020

約数列:

[1, 2, 4, 5, 10, 20, 127, 254, 508, 635, 1270, 2540, 3929, 7858, 15716, 19645, 39290, 78580, 498983, 997966, 1995932, 2494915, 4989830, 9979660]

約数ペア:

[(1, 9979660), (2, 4989830), (4, 2494915), (5, 1995932), (10, 997966), (20, 498983), (127, 78580), (254, 39290), (508, 19645), (635, 15716), (1270, 7858), (2540, 3929)]