20219793405

素因数分解:

$3^1\times 5^1\times 7^4\times {\mathrm{509}}^1\times {\mathrm{1103}}^1$

素因数の和:1648

約数の個数: 80

約数和(自身を含む): 37849800960

約数和(自身を除く): 17630007555

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 343, 509, 735, 1029, 1103, 1527, 1715, 2401, 2545, 3309, 3563, 5145, 5515, 7203, 7635, 7721, 10689, 12005, 16545, 17815, 23163, 24941, 36015, 38605, 53445, 54047, 74823, 115815, 124705, 162141, 174587, 270235, 374115, 378329, 523761, 561427, 810705, 872935, 1134987, 1222109, 1684281, 1891645, 2618805, 2648303, 2807135, 3666327, 3929989, 5674935, 6110545, 7944909, 8421405, 11789967, 13241515, 18331635, 19649945, 27509923, 39724545, 58949835, 82529769, 137549615, 192569461, 412648845, 577708383, 962847305, 1347986227, 2888541915, 4043958681, 6739931135, 20219793405]

約数ペア:

[(1, 20219793405), (3, 6739931135), (5, 4043958681), (7, 2888541915), (15, 1347986227), (21, 962847305), (35, 577708383), (49, 412648845), (105, 192569461), (147, 137549615), (245, 82529769), (343, 58949835), (509, 39724545), (735, 27509923), (1029, 19649945), (1103, 18331635), (1527, 13241515), (1715, 11789967), (2401, 8421405), (2545, 7944909), (3309, 6110545), (3563, 5674935), (5145, 3929989), (5515, 3666327), (7203, 2807135), (7635, 2648303), (7721, 2618805), (10689, 1891645), (12005, 1684281), (16545, 1222109), (17815, 1134987), (23163, 872935), (24941, 810705), (36015, 561427), (38605, 523761), (53445, 378329), (54047, 374115), (74823, 270235), (115815, 174587), (124705, 162141)]