12750220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{1493}}^1$

素因数の和:1570

約数の個数: 48

約数和(自身を含む): 31123008

約数和(自身を除く): 18372788

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 61, 70, 122, 140, 244, 305, 427, 610, 854, 1220, 1493, 1708, 2135, 2986, 4270, 5972, 7465, 8540, 10451, 14930, 20902, 29860, 41804, 52255, 91073, 104510, 182146, 209020, 364292, 455365, 637511, 910730, 1275022, 1821460, 2550044, 3187555, 6375110, 12750220]

約数ペア:

[(1, 12750220), (2, 6375110), (4, 3187555), (5, 2550044), (7, 1821460), (10, 1275022), (14, 910730), (20, 637511), (28, 455365), (35, 364292), (61, 209020), (70, 182146), (122, 104510), (140, 91073), (244, 52255), (305, 41804), (427, 29860), (610, 20902), (854, 14930), (1220, 10451), (1493, 8540), (1708, 7465), (2135, 5972), (2986, 4270)]