11821480

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{401}}^1$

素因数の和:490

約数の個数: 64

約数和(自身を含む): 29522880

約数和(自身を除く): 17701400

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 67, 88, 110, 134, 220, 268, 335, 401, 440, 536, 670, 737, 802, 1340, 1474, 1604, 2005, 2680, 2948, 3208, 3685, 4010, 4411, 5896, 7370, 8020, 8822, 14740, 16040, 17644, 22055, 26867, 29480, 35288, 44110, 53734, 88220, 107468, 134335, 176440, 214936, 268670, 295537, 537340, 591074, 1074680, 1182148, 1477685, 2364296, 2955370, 5910740, 11821480]

約数ペア:

[(1, 11821480), (2, 5910740), (4, 2955370), (5, 2364296), (8, 1477685), (10, 1182148), (11, 1074680), (20, 591074), (22, 537340), (40, 295537), (44, 268670), (55, 214936), (67, 176440), (88, 134335), (110, 107468), (134, 88220), (220, 53734), (268, 44110), (335, 35288), (401, 29480), (440, 26867), (536, 22055), (670, 17644), (737, 16040), (802, 14740), (1340, 8822), (1474, 8020), (1604, 7370), (2005, 5896), (2680, 4411), (2948, 4010), (3208, 3685)]