208793475

素因数分解:

$3^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{2909}}^1$

素因数の和:2965

約数の個数: 72

約数和(自身を含む): 422182800

約数和(自身を除く): 213389325

約数列:

[1, 3, 5, 9, 11, 15, 25, 29, 33, 45, 55, 75, 87, 99, 145, 165, 225, 261, 275, 319, 435, 495, 725, 825, 957, 1305, 1595, 2175, 2475, 2871, 2909, 4785, 6525, 7975, 8727, 14355, 14545, 23925, 26181, 31999, 43635, 71775, 72725, 84361, 95997, 130905, 159995, 218175, 253083, 287991, 421805, 479985, 654525, 759249, 799975, 927971, 1265415, 1439955, 2109025, 2399925, 2783913, 3796245, 4639855, 6327075, 7199775, 8351739, 13919565, 18981225, 23199275, 41758695, 69597825, 208793475]

約数ペア:

[(1, 208793475), (3, 69597825), (5, 41758695), (9, 23199275), (11, 18981225), (15, 13919565), (25, 8351739), (29, 7199775), (33, 6327075), (45, 4639855), (55, 3796245), (75, 2783913), (87, 2399925), (99, 2109025), (145, 1439955), (165, 1265415), (225, 927971), (261, 799975), (275, 759249), (319, 654525), (435, 479985), (495, 421805), (725, 287991), (825, 253083), (957, 218175), (1305, 159995), (1595, 130905), (2175, 95997), (2475, 84361), (2871, 72725), (2909, 71775), (4785, 43635), (6525, 31999), (7975, 26181), (8727, 23925), (14355, 14545)]