2018978860

素因数分解:

$2^2\times 5^1\times {\mathrm{227}}^1\times {\mathrm{401}}^1\times {\mathrm{1109}}^1$

素因数の和:1746

約数の個数: 48

約数和(自身を含む): 4273002720

約数和(自身を除く): 2254023860

約数列:

[1, 2, 4, 5, 10, 20, 227, 401, 454, 802, 908, 1109, 1135, 1604, 2005, 2218, 2270, 4010, 4436, 4540, 5545, 8020, 11090, 22180, 91027, 182054, 251743, 364108, 444709, 455135, 503486, 889418, 910270, 1006972, 1258715, 1778836, 1820540, 2223545, 2517430, 4447090, 5034860, 8894180, 100948943, 201897886, 403795772, 504744715, 1009489430, 2018978860]

約数ペア:

[(1, 2018978860), (2, 1009489430), (4, 504744715), (5, 403795772), (10, 201897886), (20, 100948943), (227, 8894180), (401, 5034860), (454, 4447090), (802, 2517430), (908, 2223545), (1109, 1820540), (1135, 1778836), (1604, 1258715), (2005, 1006972), (2218, 910270), (2270, 889418), (4010, 503486), (4436, 455135), (4540, 444709), (5545, 364108), (8020, 251743), (11090, 182054), (22180, 91027)]