18402560

素因数分解:

$2^8\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1307}}^1$

素因数の和:1339

約数の個数: 72

約数和(自身を含む): 48123936

約数和(自身を除く): 29721376

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 128, 160, 176, 220, 256, 320, 352, 440, 640, 704, 880, 1280, 1307, 1408, 1760, 2614, 2816, 3520, 5228, 6535, 7040, 10456, 13070, 14080, 14377, 20912, 26140, 28754, 41824, 52280, 57508, 71885, 83648, 104560, 115016, 143770, 167296, 209120, 230032, 287540, 334592, 418240, 460064, 575080, 836480, 920128, 1150160, 1672960, 1840256, 2300320, 3680512, 4600640, 9201280, 18402560]

約数ペア:

[(1, 18402560), (2, 9201280), (4, 4600640), (5, 3680512), (8, 2300320), (10, 1840256), (11, 1672960), (16, 1150160), (20, 920128), (22, 836480), (32, 575080), (40, 460064), (44, 418240), (55, 334592), (64, 287540), (80, 230032), (88, 209120), (110, 167296), (128, 143770), (160, 115016), (176, 104560), (220, 83648), (256, 71885), (320, 57508), (352, 52280), (440, 41824), (640, 28754), (704, 26140), (880, 20912), (1280, 14377), (1307, 14080), (1408, 13070), (1760, 10456), (2614, 7040), (2816, 6535), (3520, 5228)]