51216660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{25867}}^1$

素因数の和:25893

約数の個数: 72

約数和(自身を含む): 169487136

約数和(自身を除く): 118270476

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 660, 990, 1980, 25867, 51734, 77601, 103468, 129335, 155202, 232803, 258670, 284537, 310404, 388005, 465606, 517340, 569074, 776010, 853611, 931212, 1138148, 1164015, 1422685, 1552020, 1707222, 2328030, 2560833, 2845370, 3414444, 4268055, 4656060, 5121666, 5690740, 8536110, 10243332, 12804165, 17072220, 25608330, 51216660]

約数ペア:

[(1, 51216660), (2, 25608330), (3, 17072220), (4, 12804165), (5, 10243332), (6, 8536110), (9, 5690740), (10, 5121666), (11, 4656060), (12, 4268055), (15, 3414444), (18, 2845370), (20, 2560833), (22, 2328030), (30, 1707222), (33, 1552020), (36, 1422685), (44, 1164015), (45, 1138148), (55, 931212), (60, 853611), (66, 776010), (90, 569074), (99, 517340), (110, 465606), (132, 388005), (165, 310404), (180, 284537), (198, 258670), (220, 232803), (330, 155202), (396, 129335), (495, 103468), (660, 77601), (990, 51734), (1980, 25867)]