20681799268

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{313}}^1\times {\mathrm{1019}}^1$

素因数の和:1421

約数の個数: 96

約数和(自身を含む): 41431420800

約数和(自身を除く): 20749621532

約数列:

[1, 2, 4, 13, 26, 29, 43, 52, 58, 86, 116, 172, 313, 377, 559, 626, 754, 1019, 1118, 1247, 1252, 1508, 2038, 2236, 2494, 4069, 4076, 4988, 8138, 9077, 13247, 13459, 16211, 16276, 18154, 26494, 26918, 29551, 32422, 36308, 43817, 52988, 53836, 59102, 64844, 87634, 118001, 118204, 174967, 175268, 236002, 318947, 349934, 384163, 390311, 472004, 569621, 637894, 699868, 768326, 780622, 1139242, 1270693, 1275788, 1536652, 1561244, 2278484, 2541386, 4146311, 5074043, 5082772, 8292622, 9249463, 10148086, 13714721, 16519009, 16585244, 18498926, 20296172, 27429442, 33038018, 36997852, 54858884, 66076036, 120243019, 178291373, 240486038, 356582746, 397726909, 480972076, 713165492, 795453818, 1590907636, 5170449817, 10340899634, 20681799268]

約数ペア:

[(1, 20681799268), (2, 10340899634), (4, 5170449817), (13, 1590907636), (26, 795453818), (29, 713165492), (43, 480972076), (52, 397726909), (58, 356582746), (86, 240486038), (116, 178291373), (172, 120243019), (313, 66076036), (377, 54858884), (559, 36997852), (626, 33038018), (754, 27429442), (1019, 20296172), (1118, 18498926), (1247, 16585244), (1252, 16519009), (1508, 13714721), (2038, 10148086), (2236, 9249463), (2494, 8292622), (4069, 5082772), (4076, 5074043), (4988, 4146311), (8138, 2541386), (9077, 2278484), (13247, 1561244), (13459, 1536652), (16211, 1275788), (16276, 1270693), (18154, 1139242), (26494, 780622), (26918, 768326), (29551, 699868), (32422, 637894), (36308, 569621), (43817, 472004), (52988, 390311), (53836, 384163), (59102, 349934), (64844, 318947), (87634, 236002), (118001, 175268), (118204, 174967)]