20199559995

素因数分解:

$3^2\times 5^1\times {\mathrm{41}}^2\times {\mathrm{71}}^1\times {\mathrm{3761}}^1$

素因数の和:3925

約数の個数: 72

約数和(自身を含む): 36402496416

約数和(自身を除く): 16202936421

約数列:

[1, 3, 5, 9, 15, 41, 45, 71, 123, 205, 213, 355, 369, 615, 639, 1065, 1681, 1845, 2911, 3195, 3761, 5043, 8405, 8733, 11283, 14555, 15129, 18805, 25215, 26199, 33849, 43665, 56415, 75645, 119351, 130995, 154201, 169245, 267031, 358053, 462603, 596755, 771005, 801093, 1074159, 1335155, 1387809, 1790265, 2313015, 2403279, 4005465, 5370795, 6322241, 6939045, 10948271, 12016395, 18966723, 31611205, 32844813, 54741355, 56900169, 94833615, 98534439, 164224065, 284500845, 448879111, 492672195, 1346637333, 2244395555, 4039911999, 6733186665, 20199559995]

約数ペア:

[(1, 20199559995), (3, 6733186665), (5, 4039911999), (9, 2244395555), (15, 1346637333), (41, 492672195), (45, 448879111), (71, 284500845), (123, 164224065), (205, 98534439), (213, 94833615), (355, 56900169), (369, 54741355), (615, 32844813), (639, 31611205), (1065, 18966723), (1681, 12016395), (1845, 10948271), (2911, 6939045), (3195, 6322241), (3761, 5370795), (5043, 4005465), (8405, 2403279), (8733, 2313015), (11283, 1790265), (14555, 1387809), (15129, 1335155), (18805, 1074159), (25215, 801093), (26199, 771005), (33849, 596755), (43665, 462603), (56415, 358053), (75645, 267031), (119351, 169245), (130995, 154201)]