18211670125

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{7741}}^1$

素因数の和:7855

約数の個数: 64

約数和(自身を含む): 26087443200

約数和(自身を除く): 7875773075

約数列:

[1, 5, 11, 25, 29, 55, 59, 125, 145, 275, 295, 319, 649, 725, 1375, 1475, 1595, 1711, 3245, 3625, 7375, 7741, 7975, 8555, 16225, 18821, 38705, 39875, 42775, 81125, 85151, 94105, 193525, 213875, 224489, 425755, 456719, 470525, 967625, 1122445, 2128775, 2283595, 2352625, 2469379, 5023909, 5612225, 10643875, 11417975, 12346895, 13244851, 25119545, 28061125, 57089875, 61734475, 66224255, 125597725, 145693361, 308672375, 331121275, 627988625, 728466805, 1655606375, 3642334025, 18211670125]

約数ペア:

[(1, 18211670125), (5, 3642334025), (11, 1655606375), (25, 728466805), (29, 627988625), (55, 331121275), (59, 308672375), (125, 145693361), (145, 125597725), (275, 66224255), (295, 61734475), (319, 57089875), (649, 28061125), (725, 25119545), (1375, 13244851), (1475, 12346895), (1595, 11417975), (1711, 10643875), (3245, 5612225), (3625, 5023909), (7375, 2469379), (7741, 2352625), (7975, 2283595), (8555, 2128775), (16225, 1122445), (18821, 967625), (38705, 470525), (39875, 456719), (42775, 425755), (81125, 224489), (85151, 213875), (94105, 193525)]