20173902440

素因数分解:

$2^3\times 5^1\times {\mathrm{23593}}^1\times {\mathrm{21377}}^1$

素因数の和:44981

約数の個数: 32

約数和(自身を含む): 45395327880

約数和(自身を除く): 25221425440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 21377, 23593, 42754, 47186, 85508, 94372, 106885, 117965, 171016, 188744, 213770, 235930, 427540, 471860, 855080, 943720, 504347561, 1008695122, 2017390244, 2521737805, 4034780488, 5043475610, 10086951220, 20173902440]

約数ペア:

[(1, 20173902440), (2, 10086951220), (4, 5043475610), (5, 4034780488), (8, 2521737805), (10, 2017390244), (20, 1008695122), (40, 504347561), (21377, 943720), (23593, 855080), (42754, 471860), (47186, 427540), (85508, 235930), (94372, 213770), (106885, 188744), (117965, 171016)]