80440490

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{1123}}^1$

素因数の和:1191

約数の個数: 64

約数和(自身を含む): 169948800

約数和(自身を除く): 89508310

約数列:

[1, 2, 5, 10, 13, 19, 26, 29, 38, 58, 65, 95, 130, 145, 190, 247, 290, 377, 494, 551, 754, 1102, 1123, 1235, 1885, 2246, 2470, 2755, 3770, 5510, 5615, 7163, 11230, 14326, 14599, 21337, 29198, 32567, 35815, 42674, 65134, 71630, 72995, 106685, 145990, 162835, 213370, 277381, 325670, 423371, 554762, 618773, 846742, 1237546, 1386905, 2116855, 2773810, 3093865, 4233710, 6187730, 8044049, 16088098, 40220245, 80440490]

約数ペア:

[(1, 80440490), (2, 40220245), (5, 16088098), (10, 8044049), (13, 6187730), (19, 4233710), (26, 3093865), (29, 2773810), (38, 2116855), (58, 1386905), (65, 1237546), (95, 846742), (130, 618773), (145, 554762), (190, 423371), (247, 325670), (290, 277381), (377, 213370), (494, 162835), (551, 145990), (754, 106685), (1102, 72995), (1123, 71630), (1235, 65134), (1885, 42674), (2246, 35815), (2470, 32567), (2755, 29198), (3770, 21337), (5510, 14599), (5615, 14326), (7163, 11230)]