12868480

素因数分解:

$2^7\times 5^1\times {\mathrm{20107}}^1$

素因数の和:20126

約数の個数: 32

約数和(自身を含む): 30765240

約数和(自身を除く): 17896760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 20107, 40214, 80428, 100535, 160856, 201070, 321712, 402140, 643424, 804280, 1286848, 1608560, 2573696, 3217120, 6434240, 12868480]

約数ペア:

[(1, 12868480), (2, 6434240), (4, 3217120), (5, 2573696), (8, 1608560), (10, 1286848), (16, 804280), (20, 643424), (32, 402140), (40, 321712), (64, 201070), (80, 160856), (128, 100535), (160, 80428), (320, 40214), (640, 20107)]