18440180

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{1061}}^1$

素因数の和:1160

約数の個数: 48

約数和(自身を含む): 42819840

約数和(自身を除く): 24379660

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 79, 110, 158, 220, 316, 395, 790, 869, 1061, 1580, 1738, 2122, 3476, 4244, 4345, 5305, 8690, 10610, 11671, 17380, 21220, 23342, 46684, 58355, 83819, 116710, 167638, 233420, 335276, 419095, 838190, 922009, 1676380, 1844018, 3688036, 4610045, 9220090, 18440180]

約数ペア:

[(1, 18440180), (2, 9220090), (4, 4610045), (5, 3688036), (10, 1844018), (11, 1676380), (20, 922009), (22, 838190), (44, 419095), (55, 335276), (79, 233420), (110, 167638), (158, 116710), (220, 83819), (316, 58355), (395, 46684), (790, 23342), (869, 21220), (1061, 17380), (1580, 11671), (1738, 10610), (2122, 8690), (3476, 5305), (4244, 4345)]