20199808305

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{557}}^1\times {\mathrm{947}}^1$

素因数の和:1575

約数の個数: 96

約数和(自身を含む): 37629805824

約数和(自身を除く): 17429997519

約数列:

[1, 3, 5, 9, 15, 23, 37, 45, 69, 111, 115, 185, 207, 333, 345, 555, 557, 851, 947, 1035, 1665, 1671, 2553, 2785, 2841, 4255, 4735, 5013, 7659, 8355, 8523, 12765, 12811, 14205, 20609, 21781, 25065, 35039, 38295, 38433, 42615, 61827, 64055, 65343, 103045, 105117, 108905, 115299, 175195, 185481, 192165, 196029, 309135, 315351, 326715, 474007, 525585, 527479, 576495, 805897, 927405, 980145, 1422021, 1576755, 1582437, 2370035, 2417691, 2637395, 4029485, 4266063, 4747311, 7110105, 7253073, 7912185, 12088455, 12132017, 19516723, 21330315, 23736555, 36265365, 36396051, 58550169, 60660085, 97583615, 109188153, 175650507, 181980255, 292750845, 448884629, 545940765, 878252535, 1346653887, 2244423145, 4039961661, 6733269435, 20199808305]

約数ペア:

[(1, 20199808305), (3, 6733269435), (5, 4039961661), (9, 2244423145), (15, 1346653887), (23, 878252535), (37, 545940765), (45, 448884629), (69, 292750845), (111, 181980255), (115, 175650507), (185, 109188153), (207, 97583615), (333, 60660085), (345, 58550169), (555, 36396051), (557, 36265365), (851, 23736555), (947, 21330315), (1035, 19516723), (1665, 12132017), (1671, 12088455), (2553, 7912185), (2785, 7253073), (2841, 7110105), (4255, 4747311), (4735, 4266063), (5013, 4029485), (7659, 2637395), (8355, 2417691), (8523, 2370035), (12765, 1582437), (12811, 1576755), (14205, 1422021), (20609, 980145), (21781, 927405), (25065, 805897), (35039, 576495), (38295, 527479), (38433, 525585), (42615, 474007), (61827, 326715), (64055, 315351), (65343, 309135), (103045, 196029), (105117, 192165), (108905, 185481), (115299, 175195)]