655492090

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{271}}^1\times {\mathrm{1999}}^1$

素因数の和:2299

約数の個数: 48

約数和(自身を含む): 1302336000

約数和(自身を除く): 646843910

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 121, 242, 271, 542, 605, 1210, 1355, 1999, 2710, 2981, 3998, 5962, 9995, 14905, 19990, 21989, 29810, 32791, 43978, 65582, 109945, 163955, 219890, 241879, 327910, 483758, 541729, 1083458, 1209395, 2418790, 2708645, 5417290, 5959019, 11918038, 29795095, 59590190, 65549209, 131098418, 327746045, 655492090]

約数ペア:

[(1, 655492090), (2, 327746045), (5, 131098418), (10, 65549209), (11, 59590190), (22, 29795095), (55, 11918038), (110, 5959019), (121, 5417290), (242, 2708645), (271, 2418790), (542, 1209395), (605, 1083458), (1210, 541729), (1355, 483758), (1999, 327910), (2710, 241879), (2981, 219890), (3998, 163955), (5962, 109945), (9995, 65582), (14905, 43978), (19990, 32791), (21989, 29810)]