20486784

素因数分解:

$2^7\times 3^1\times {\mathrm{31}}^1\times {\mathrm{1721}}^1$

素因数の和:1769

約数の個数: 64

約数和(自身を含む): 56206080

約数和(自身を除く): 35719296

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 31, 32, 48, 62, 64, 93, 96, 124, 128, 186, 192, 248, 372, 384, 496, 744, 992, 1488, 1721, 1984, 2976, 3442, 3968, 5163, 5952, 6884, 10326, 11904, 13768, 20652, 27536, 41304, 53351, 55072, 82608, 106702, 110144, 160053, 165216, 213404, 220288, 320106, 330432, 426808, 640212, 660864, 853616, 1280424, 1707232, 2560848, 3414464, 5121696, 6828928, 10243392, 20486784]

約数ペア:

[(1, 20486784), (2, 10243392), (3, 6828928), (4, 5121696), (6, 3414464), (8, 2560848), (12, 1707232), (16, 1280424), (24, 853616), (31, 660864), (32, 640212), (48, 426808), (62, 330432), (64, 320106), (93, 220288), (96, 213404), (124, 165216), (128, 160053), (186, 110144), (192, 106702), (248, 82608), (372, 55072), (384, 53351), (496, 41304), (744, 27536), (992, 20652), (1488, 13768), (1721, 11904), (1984, 10326), (2976, 6884), (3442, 5952), (3968, 5163)]