220990940

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{431}}^1\times {\mathrm{827}}^1$

素因数の和:1298

約数の個数: 48

約数和(自身を含む): 480743424

約数和(自身を除く): 259752484

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 431, 620, 827, 862, 1654, 1724, 2155, 3308, 4135, 4310, 8270, 8620, 13361, 16540, 25637, 26722, 51274, 53444, 66805, 102548, 128185, 133610, 256370, 267220, 356437, 512740, 712874, 1425748, 1782185, 3564370, 7128740, 11049547, 22099094, 44198188, 55247735, 110495470, 220990940]

約数ペア:

[(1, 220990940), (2, 110495470), (4, 55247735), (5, 44198188), (10, 22099094), (20, 11049547), (31, 7128740), (62, 3564370), (124, 1782185), (155, 1425748), (310, 712874), (431, 512740), (620, 356437), (827, 267220), (862, 256370), (1654, 133610), (1724, 128185), (2155, 102548), (3308, 66805), (4135, 53444), (4310, 51274), (8270, 26722), (8620, 25637), (13361, 16540)]