207734920

素因数分解:

$2^3\times 5^1\times {\mathrm{997}}^1\times {\mathrm{5209}}^1$

素因数の和:6217

約数の個数: 32

約数和(自身を含む): 467962200

約数和(自身を除く): 260227280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 997, 1994, 3988, 4985, 5209, 7976, 9970, 10418, 19940, 20836, 26045, 39880, 41672, 52090, 104180, 208360, 5193373, 10386746, 20773492, 25966865, 41546984, 51933730, 103867460, 207734920]

約数ペア:

[(1, 207734920), (2, 103867460), (4, 51933730), (5, 41546984), (8, 25966865), (10, 20773492), (20, 10386746), (40, 5193373), (997, 208360), (1994, 104180), (3988, 52090), (4985, 41672), (5209, 39880), (7976, 26045), (9970, 20836), (10418, 19940)]