131620885

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{239}}^1$

素因数の和:322

約数の個数: 64

約数和(自身を含む): 199065600

約数和(自身を除く): 67444715

約数列:

[1, 5, 11, 17, 19, 31, 55, 85, 95, 155, 187, 209, 239, 323, 341, 527, 589, 935, 1045, 1195, 1615, 1705, 2629, 2635, 2945, 3553, 4063, 4541, 5797, 6479, 7409, 10013, 13145, 17765, 20315, 22705, 28985, 32395, 37045, 44693, 49951, 50065, 77197, 81499, 110143, 125953, 140771, 223465, 249755, 385985, 407495, 550715, 629765, 703855, 849167, 1385483, 1548481, 2393107, 4245835, 6927415, 7742405, 11965535, 26324177, 131620885]

約数ペア:

[(1, 131620885), (5, 26324177), (11, 11965535), (17, 7742405), (19, 6927415), (31, 4245835), (55, 2393107), (85, 1548481), (95, 1385483), (155, 849167), (187, 703855), (209, 629765), (239, 550715), (323, 407495), (341, 385985), (527, 249755), (589, 223465), (935, 140771), (1045, 125953), (1195, 110143), (1615, 81499), (1705, 77197), (2629, 50065), (2635, 49951), (2945, 44693), (3553, 37045), (4063, 32395), (4541, 28985), (5797, 22705), (6479, 20315), (7409, 17765), (10013, 13145)]