27721000780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{197}}^1\times {\mathrm{58147}}^1$

素因数の和:58375

約数の個数: 72

約数和(自身を含む): 64313316144

約数和(自身を除く): 36592315364

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 197, 220, 242, 394, 484, 605, 788, 985, 1210, 1970, 2167, 2420, 3940, 4334, 8668, 10835, 21670, 23837, 43340, 47674, 58147, 95348, 116294, 119185, 232588, 238370, 290735, 476740, 581470, 639617, 1162940, 1279234, 2558468, 3198085, 6396170, 7035787, 11454959, 12792340, 14071574, 22909918, 28143148, 35178935, 45819836, 57274795, 70357870, 114549590, 126004549, 140715740, 229099180, 252009098, 504018196, 630022745, 1260045490, 1386050039, 2520090980, 2772100078, 5544200156, 6930250195, 13860500390, 27721000780]

約数ペア:

[(1, 27721000780), (2, 13860500390), (4, 6930250195), (5, 5544200156), (10, 2772100078), (11, 2520090980), (20, 1386050039), (22, 1260045490), (44, 630022745), (55, 504018196), (110, 252009098), (121, 229099180), (197, 140715740), (220, 126004549), (242, 114549590), (394, 70357870), (484, 57274795), (605, 45819836), (788, 35178935), (985, 28143148), (1210, 22909918), (1970, 14071574), (2167, 12792340), (2420, 11454959), (3940, 7035787), (4334, 6396170), (8668, 3198085), (10835, 2558468), (21670, 1279234), (23837, 1162940), (43340, 639617), (47674, 581470), (58147, 476740), (95348, 290735), (116294, 238370), (119185, 232588)]