20199251916

素因数分解:

$2^2\times 3^2\times {\mathrm{409}}^1\times {\mathrm{569}}^1\times {\mathrm{2411}}^1$

素因数の和:3399

約数の個数: 72

約数和(自身を含む): 51295280400

約数和(自身を除く): 31096028484

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 409, 569, 818, 1138, 1227, 1636, 1707, 2276, 2411, 2454, 3414, 3681, 4822, 4908, 5121, 6828, 7233, 7362, 9644, 10242, 14466, 14724, 20484, 21699, 28932, 43398, 86796, 232721, 465442, 698163, 930884, 986099, 1371859, 1396326, 1972198, 2094489, 2743718, 2792652, 2958297, 3944396, 4115577, 4188978, 5487436, 5916594, 8231154, 8377956, 8874891, 11833188, 12346731, 16462308, 17749782, 24693462, 35499564, 49386924, 561090331, 1122180662, 1683270993, 2244361324, 3366541986, 5049812979, 6733083972, 10099625958, 20199251916]

約数ペア:

[(1, 20199251916), (2, 10099625958), (3, 6733083972), (4, 5049812979), (6, 3366541986), (9, 2244361324), (12, 1683270993), (18, 1122180662), (36, 561090331), (409, 49386924), (569, 35499564), (818, 24693462), (1138, 17749782), (1227, 16462308), (1636, 12346731), (1707, 11833188), (2276, 8874891), (2411, 8377956), (2454, 8231154), (3414, 5916594), (3681, 5487436), (4822, 4188978), (4908, 4115577), (5121, 3944396), (6828, 2958297), (7233, 2792652), (7362, 2743718), (9644, 2094489), (10242, 1972198), (14466, 1396326), (14724, 1371859), (20484, 986099), (21699, 930884), (28932, 698163), (43398, 465442), (86796, 232721)]