7780480

素因数分解:

$2^7\times 5^1\times {\mathrm{12157}}^1$

素因数の和:12176

約数の個数: 32

約数和(自身を含む): 18601740

約数和(自身を除く): 10821260

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 12157, 24314, 48628, 60785, 97256, 121570, 194512, 243140, 389024, 486280, 778048, 972560, 1556096, 1945120, 3890240, 7780480]

約数ペア:

[(1, 7780480), (2, 3890240), (4, 1945120), (5, 1556096), (8, 972560), (10, 778048), (16, 486280), (20, 389024), (32, 243140), (40, 194512), (64, 121570), (80, 97256), (128, 60785), (160, 48628), (320, 24314), (640, 12157)]