20945612162

素因数分解:

$2^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{97}}^1\times {\mathrm{563}}^1$

素因数の和:843

約数の個数: 64

約数和(自身を含む): 33571770624

約数和(自身を除く): 12626158462

約数列:

[1, 2, 37, 71, 73, 74, 97, 142, 146, 194, 563, 1126, 2627, 2701, 3589, 5183, 5254, 5402, 6887, 7081, 7178, 10366, 13774, 14162, 20831, 39973, 41099, 41662, 54611, 79946, 82198, 109222, 191771, 254819, 261997, 383542, 502751, 509638, 523994, 1005502, 1479001, 1520663, 2020607, 2918029, 2958002, 3041326, 3877381, 3986603, 4041214, 5836058, 7754762, 7973206, 18601787, 37203574, 107967073, 143463097, 147504311, 215934146, 283048813, 286926194, 295008622, 566097626, 10472806081, 20945612162]

約数ペア:

[(1, 20945612162), (2, 10472806081), (37, 566097626), (71, 295008622), (73, 286926194), (74, 283048813), (97, 215934146), (142, 147504311), (146, 143463097), (194, 107967073), (563, 37203574), (1126, 18601787), (2627, 7973206), (2701, 7754762), (3589, 5836058), (5183, 4041214), (5254, 3986603), (5402, 3877381), (6887, 3041326), (7081, 2958002), (7178, 2918029), (10366, 2020607), (13774, 1520663), (14162, 1479001), (20831, 1005502), (39973, 523994), (41099, 509638), (41662, 502751), (54611, 383542), (79946, 261997), (82198, 254819), (109222, 191771)]