2005021100620

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{401}}^1\times {\mathrm{8064601}}^1$

素因数の和:8065042

約数の個数: 48

約数和(自身を含む): 4357207685376

約数和(自身を除く): 2352186584756

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 401, 620, 802, 1604, 2005, 4010, 8020, 12431, 24862, 49724, 62155, 124310, 248620, 8064601, 16129202, 32258404, 40323005, 80646010, 161292020, 250002631, 500005262, 1000010524, 1250013155, 2500026310, 3233905001, 5000052620, 6467810002, 12935620004, 16169525005, 32339050010, 64678100020, 100251055031, 200502110062, 401004220124, 501255275155, 1002510550310, 2005021100620]

約数ペア:

[(1, 2005021100620), (2, 1002510550310), (4, 501255275155), (5, 401004220124), (10, 200502110062), (20, 100251055031), (31, 64678100020), (62, 32339050010), (124, 16169525005), (155, 12935620004), (310, 6467810002), (401, 5000052620), (620, 3233905001), (802, 2500026310), (1604, 1250013155), (2005, 1000010524), (4010, 500005262), (8020, 250002631), (12431, 161292020), (24862, 80646010), (49724, 40323005), (62155, 32258404), (124310, 16129202), (248620, 8064601)]