128429380

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{317}}^1\times {\mathrm{431}}^1$

素因数の和:804

約数の個数: 48

約数和(自身を含む): 276950016

約数和(自身を除く): 148520636

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 317, 431, 470, 634, 862, 940, 1268, 1585, 1724, 2155, 3170, 4310, 6340, 8620, 14899, 20257, 29798, 40514, 59596, 74495, 81028, 101285, 136627, 148990, 202570, 273254, 297980, 405140, 546508, 683135, 1366270, 2732540, 6421469, 12842938, 25685876, 32107345, 64214690, 128429380]

約数ペア:

[(1, 128429380), (2, 64214690), (4, 32107345), (5, 25685876), (10, 12842938), (20, 6421469), (47, 2732540), (94, 1366270), (188, 683135), (235, 546508), (317, 405140), (431, 297980), (470, 273254), (634, 202570), (862, 148990), (940, 136627), (1268, 101285), (1585, 81028), (1724, 74495), (2155, 59596), (3170, 40514), (4310, 29798), (6340, 20257), (8620, 14899)]