12456620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{1381}}^1$

素因数の和:1442

約数の個数: 48

約数和(自身を含む): 29254176

約数和(自身を除く): 16797556

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 41, 44, 55, 82, 110, 164, 205, 220, 410, 451, 820, 902, 1381, 1804, 2255, 2762, 4510, 5524, 6905, 9020, 13810, 15191, 27620, 30382, 56621, 60764, 75955, 113242, 151910, 226484, 283105, 303820, 566210, 622831, 1132420, 1245662, 2491324, 3114155, 6228310, 12456620]

約数ペア:

[(1, 12456620), (2, 6228310), (4, 3114155), (5, 2491324), (10, 1245662), (11, 1132420), (20, 622831), (22, 566210), (41, 303820), (44, 283105), (55, 226484), (82, 151910), (110, 113242), (164, 75955), (205, 60764), (220, 56621), (410, 30382), (451, 27620), (820, 15191), (902, 13810), (1381, 9020), (1804, 6905), (2255, 5524), (2762, 4510)]