218707940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{24247}}^1$

素因数の和:24308

約数の個数: 48

約数和(自身を含む): 513281664

約数和(自身を除く): 294573724

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 41, 44, 55, 82, 110, 164, 205, 220, 410, 451, 820, 902, 1804, 2255, 4510, 9020, 24247, 48494, 96988, 121235, 242470, 266717, 484940, 533434, 994127, 1066868, 1333585, 1988254, 2667170, 3976508, 4970635, 5334340, 9941270, 10935397, 19882540, 21870794, 43741588, 54676985, 109353970, 218707940]

約数ペア:

[(1, 218707940), (2, 109353970), (4, 54676985), (5, 43741588), (10, 21870794), (11, 19882540), (20, 10935397), (22, 9941270), (41, 5334340), (44, 4970635), (55, 3976508), (82, 2667170), (110, 1988254), (164, 1333585), (205, 1066868), (220, 994127), (410, 533434), (451, 484940), (820, 266717), (902, 242470), (1804, 121235), (2255, 96988), (4510, 48494), (9020, 24247)]