20171692805

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{17}}^2\times {\mathrm{43}}^1\times {\mathrm{2683}}^1$

素因数の和:2787

約数の個数: 72

約数和(自身を含む): 28931866656

約数和(自身を除く): 8760173851

約数列:

[1, 5, 11, 17, 43, 55, 85, 121, 187, 215, 289, 473, 605, 731, 935, 1445, 2057, 2365, 2683, 3179, 3655, 5203, 8041, 10285, 12427, 13415, 15895, 26015, 29513, 34969, 40205, 45611, 62135, 88451, 115369, 136697, 147565, 174845, 228055, 324643, 442255, 501721, 576845, 683485, 775387, 1269059, 1503667, 1623215, 1961273, 2508605, 3876935, 5518931, 6345295, 7518335, 8529257, 9806365, 13959649, 21574003, 27594655, 33341641, 42646285, 69798245, 93821827, 107870015, 166708205, 237314033, 366758051, 469109135, 1186570165, 1833790255, 4034338561, 20171692805]

約数ペア:

[(1, 20171692805), (5, 4034338561), (11, 1833790255), (17, 1186570165), (43, 469109135), (55, 366758051), (85, 237314033), (121, 166708205), (187, 107870015), (215, 93821827), (289, 69798245), (473, 42646285), (605, 33341641), (731, 27594655), (935, 21574003), (1445, 13959649), (2057, 9806365), (2365, 8529257), (2683, 7518335), (3179, 6345295), (3655, 5518931), (5203, 3876935), (8041, 2508605), (10285, 1961273), (12427, 1623215), (13415, 1503667), (15895, 1269059), (26015, 775387), (29513, 683485), (34969, 576845), (40205, 501721), (45611, 442255), (62135, 324643), (88451, 228055), (115369, 174845), (136697, 147565)]