2438860

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{619}}^1$

素因数の和:825

約数の個数: 24

約数和(自身を含む): 5155920

約数和(自身を除く): 2717060

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 619, 788, 985, 1238, 1970, 2476, 3095, 3940, 6190, 12380, 121943, 243886, 487772, 609715, 1219430, 2438860]

約数ペア:

[(1, 2438860), (2, 1219430), (4, 609715), (5, 487772), (10, 243886), (20, 121943), (197, 12380), (394, 6190), (619, 3940), (788, 3095), (985, 2476), (1238, 1970)]