18389900

素因数分解:

$2^2\times 5^2\times {\mathrm{173}}^1\times {\mathrm{1063}}^1$

素因数の和:1250

約数の個数: 36

約数和(自身を含む): 40174512

約数和(自身を除く): 21784612

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 173, 346, 692, 865, 1063, 1730, 2126, 3460, 4252, 4325, 5315, 8650, 10630, 17300, 21260, 26575, 53150, 106300, 183899, 367798, 735596, 919495, 1838990, 3677980, 4597475, 9194950, 18389900]

約数ペア:

[(1, 18389900), (2, 9194950), (4, 4597475), (5, 3677980), (10, 1838990), (20, 919495), (25, 735596), (50, 367798), (100, 183899), (173, 106300), (346, 53150), (692, 26575), (865, 21260), (1063, 17300), (1730, 10630), (2126, 8650), (3460, 5315), (4252, 4325)]