20172950320

素因数分解:

$2^4\times 5^1\times {\mathrm{97}}^1\times {\mathrm{251}}^1\times {\mathrm{10357}}^1$

素因数の和:10718

約数の個数: 80

約数和(自身を含む): 47579017248

約数和(自身を除く): 27406066928

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 97, 194, 251, 388, 485, 502, 776, 970, 1004, 1255, 1552, 1940, 2008, 2510, 3880, 4016, 5020, 7760, 10040, 10357, 20080, 20714, 24347, 41428, 48694, 51785, 82856, 97388, 103570, 121735, 165712, 194776, 207140, 243470, 389552, 414280, 486940, 828560, 973880, 1004629, 1947760, 2009258, 2599607, 4018516, 5023145, 5199214, 8037032, 10046290, 10398428, 12998035, 16074064, 20092580, 20796856, 25996070, 40185160, 41593712, 51992140, 80370320, 103984280, 207968560, 252161879, 504323758, 1008647516, 1260809395, 2017295032, 2521618790, 4034590064, 5043237580, 10086475160, 20172950320]

約数ペア:

[(1, 20172950320), (2, 10086475160), (4, 5043237580), (5, 4034590064), (8, 2521618790), (10, 2017295032), (16, 1260809395), (20, 1008647516), (40, 504323758), (80, 252161879), (97, 207968560), (194, 103984280), (251, 80370320), (388, 51992140), (485, 41593712), (502, 40185160), (776, 25996070), (970, 20796856), (1004, 20092580), (1255, 16074064), (1552, 12998035), (1940, 10398428), (2008, 10046290), (2510, 8037032), (3880, 5199214), (4016, 5023145), (5020, 4018516), (7760, 2599607), (10040, 2009258), (10357, 1947760), (20080, 1004629), (20714, 973880), (24347, 828560), (41428, 486940), (48694, 414280), (51785, 389552), (82856, 243470), (97388, 207140), (103570, 194776), (121735, 165712)]