16621880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{1021}}^1$

素因数の和:1080

約数の個数: 64

約数和(自身を含む): 41942880

約数和(自身を除く): 25321000

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 37, 40, 44, 55, 74, 88, 110, 148, 185, 220, 296, 370, 407, 440, 740, 814, 1021, 1480, 1628, 2035, 2042, 3256, 4070, 4084, 5105, 8140, 8168, 10210, 11231, 16280, 20420, 22462, 37777, 40840, 44924, 56155, 75554, 89848, 112310, 151108, 188885, 224620, 302216, 377770, 415547, 449240, 755540, 831094, 1511080, 1662188, 2077735, 3324376, 4155470, 8310940, 16621880]

約数ペア:

[(1, 16621880), (2, 8310940), (4, 4155470), (5, 3324376), (8, 2077735), (10, 1662188), (11, 1511080), (20, 831094), (22, 755540), (37, 449240), (40, 415547), (44, 377770), (55, 302216), (74, 224620), (88, 188885), (110, 151108), (148, 112310), (185, 89848), (220, 75554), (296, 56155), (370, 44924), (407, 40840), (440, 37777), (740, 22462), (814, 20420), (1021, 16280), (1480, 11231), (1628, 10210), (2035, 8168), (2042, 8140), (3256, 5105), (4070, 4084)]