20789968605

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{181}}^1\times {\mathrm{26681}}^1$

素因数の和:26918

約数の個数: 64

約数和(自身を含む): 39159783936

約数和(自身を除く): 18369815331

約数列:

[1, 3, 5, 7, 15, 21, 35, 41, 105, 123, 181, 205, 287, 543, 615, 861, 905, 1267, 1435, 2715, 3801, 4305, 6335, 7421, 19005, 22263, 26681, 37105, 51947, 80043, 111315, 133405, 155841, 186767, 259735, 400215, 560301, 779205, 933835, 1093921, 2801505, 3281763, 4829261, 5469605, 7657447, 14487783, 16408815, 22972341, 24146305, 33804827, 38287235, 72438915, 101414481, 114861705, 169024135, 197999701, 507072405, 593999103, 989998505, 1385997907, 2969995515, 4157993721, 6929989535, 20789968605]

約数ペア:

[(1, 20789968605), (3, 6929989535), (5, 4157993721), (7, 2969995515), (15, 1385997907), (21, 989998505), (35, 593999103), (41, 507072405), (105, 197999701), (123, 169024135), (181, 114861705), (205, 101414481), (287, 72438915), (543, 38287235), (615, 33804827), (861, 24146305), (905, 22972341), (1267, 16408815), (1435, 14487783), (2715, 7657447), (3801, 5469605), (4305, 4829261), (6335, 3281763), (7421, 2801505), (19005, 1093921), (22263, 933835), (26681, 779205), (37105, 560301), (51947, 400215), (80043, 259735), (111315, 186767), (133405, 155841)]