18211250

素因数分解:

$2^1\times 5^4\times {\mathrm{17}}^1\times {\mathrm{857}}^1$

素因数の和:896

約数の個数: 40

約数和(自身を含む): 36185292

約数和(自身を除く): 17974042

約数列:

[1, 2, 5, 10, 17, 25, 34, 50, 85, 125, 170, 250, 425, 625, 850, 857, 1250, 1714, 2125, 4250, 4285, 8570, 10625, 14569, 21250, 21425, 29138, 42850, 72845, 107125, 145690, 214250, 364225, 535625, 728450, 1071250, 1821125, 3642250, 9105625, 18211250]

約数ペア:

[(1, 18211250), (2, 9105625), (5, 3642250), (10, 1821125), (17, 1071250), (25, 728450), (34, 535625), (50, 364225), (85, 214250), (125, 145690), (170, 107125), (250, 72845), (425, 42850), (625, 29138), (850, 21425), (857, 21250), (1250, 14569), (1714, 10625), (2125, 8570), (4250, 4285)]