20420706

素因数分解:

$2^1\times 3^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{257}}^1$

素因数の和:339

約数の個数: 64

約数和(自身を含む): 46811520

約数和(自身を除く): 26390814

約数列:

[1, 2, 3, 6, 17, 19, 34, 38, 41, 51, 57, 82, 102, 114, 123, 246, 257, 323, 514, 646, 697, 771, 779, 969, 1394, 1542, 1558, 1938, 2091, 2337, 4182, 4369, 4674, 4883, 8738, 9766, 10537, 13107, 13243, 14649, 21074, 26214, 26486, 29298, 31611, 39729, 63222, 79458, 83011, 166022, 179129, 200203, 249033, 358258, 400406, 498066, 537387, 600609, 1074774, 1201218, 3403451, 6806902, 10210353, 20420706]

約数ペア:

[(1, 20420706), (2, 10210353), (3, 6806902), (6, 3403451), (17, 1201218), (19, 1074774), (34, 600609), (38, 537387), (41, 498066), (51, 400406), (57, 358258), (82, 249033), (102, 200203), (114, 179129), (123, 166022), (246, 83011), (257, 79458), (323, 63222), (514, 39729), (646, 31611), (697, 29298), (771, 26486), (779, 26214), (969, 21074), (1394, 14649), (1542, 13243), (1558, 13107), (1938, 10537), (2091, 9766), (2337, 8738), (4182, 4883), (4369, 4674)]