9916120

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{1579}}^1$

素因数の和:1747

約数の個数: 32

約数和(自身を含む): 22467600

約数和(自身を除く): 12551480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 628, 785, 1256, 1570, 1579, 3140, 3158, 6280, 6316, 7895, 12632, 15790, 31580, 63160, 247903, 495806, 991612, 1239515, 1983224, 2479030, 4958060, 9916120]

約数ペア:

[(1, 9916120), (2, 4958060), (4, 2479030), (5, 1983224), (8, 1239515), (10, 991612), (20, 495806), (40, 247903), (157, 63160), (314, 31580), (628, 15790), (785, 12632), (1256, 7895), (1570, 6316), (1579, 6280), (3140, 3158)]