129889880

素因数分解:

$2^3\times 5^1\times {\mathrm{353}}^1\times {\mathrm{9199}}^1$

素因数の和:9563

約数の個数: 32

約数和(自身を含む): 293112000

約数和(自身を除く): 163222120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 353, 706, 1412, 1765, 2824, 3530, 7060, 9199, 14120, 18398, 36796, 45995, 73592, 91990, 183980, 367960, 3247247, 6494494, 12988988, 16236235, 25977976, 32472470, 64944940, 129889880]

約数ペア:

[(1, 129889880), (2, 64944940), (4, 32472470), (5, 25977976), (8, 16236235), (10, 12988988), (20, 6494494), (40, 3247247), (353, 367960), (706, 183980), (1412, 91990), (1765, 73592), (2824, 45995), (3530, 36796), (7060, 18398), (9199, 14120)]