280984440

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{212867}}^1$

素因数の和:212892

約数の個数: 64

約数和(自身を含む): 919589760

約数和(自身を除く): 638605320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 88, 110, 120, 132, 165, 220, 264, 330, 440, 660, 1320, 212867, 425734, 638601, 851468, 1064335, 1277202, 1702936, 2128670, 2341537, 2554404, 3193005, 4257340, 4683074, 5108808, 6386010, 7024611, 8514680, 9366148, 11707685, 12772020, 14049222, 18732296, 23415370, 25544040, 28098444, 35123055, 46830740, 56196888, 70246110, 93661480, 140492220, 280984440]

約数ペア:

[(1, 280984440), (2, 140492220), (3, 93661480), (4, 70246110), (5, 56196888), (6, 46830740), (8, 35123055), (10, 28098444), (11, 25544040), (12, 23415370), (15, 18732296), (20, 14049222), (22, 12772020), (24, 11707685), (30, 9366148), (33, 8514680), (40, 7024611), (44, 6386010), (55, 5108808), (60, 4683074), (66, 4257340), (88, 3193005), (110, 2554404), (120, 2341537), (132, 2128670), (165, 1702936), (220, 1277202), (264, 1064335), (330, 851468), (440, 638601), (660, 425734), (1320, 212867)]