81821981528

素因数分解:

$2^3\times 7^1\times {\mathrm{47}}^1\times {\mathrm{4229}}^1\times {\mathrm{7351}}^1$

素因数の和:11640

約数の個数: 64

約数和(自身を含む): 179130009600

約数和(自身を除く): 97308028072

約数列:

[1, 2, 4, 7, 8, 14, 28, 47, 56, 94, 188, 329, 376, 658, 1316, 2632, 4229, 7351, 8458, 14702, 16916, 29404, 29603, 33832, 51457, 58808, 59206, 102914, 118412, 198763, 205828, 236824, 345497, 397526, 411656, 690994, 795052, 1381988, 1391341, 1590104, 2418479, 2763976, 2782682, 4836958, 5565364, 9673916, 11130728, 19347832, 31087379, 62174758, 124349516, 217611653, 248699032, 435223306, 870446612, 1461106813, 1740893224, 2922213626, 5844427252, 10227747691, 11688854504, 20455495382, 40910990764, 81821981528]

約数ペア:

[(1, 81821981528), (2, 40910990764), (4, 20455495382), (7, 11688854504), (8, 10227747691), (14, 5844427252), (28, 2922213626), (47, 1740893224), (56, 1461106813), (94, 870446612), (188, 435223306), (329, 248699032), (376, 217611653), (658, 124349516), (1316, 62174758), (2632, 31087379), (4229, 19347832), (7351, 11130728), (8458, 9673916), (14702, 5565364), (16916, 4836958), (29404, 2782682), (29603, 2763976), (33832, 2418479), (51457, 1590104), (58808, 1391341), (59206, 1381988), (102914, 795052), (118412, 690994), (198763, 411656), (205828, 397526), (236824, 345497)]