20169717800

素因数分解:

$2^3\times 5^2\times {\mathrm{163}}^1\times {\mathrm{618703}}^1$

素因数の和:618882

約数の個数: 48

約数和(自身を含む): 47182367040

約数和(自身を除く): 27012649240

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 163, 200, 326, 652, 815, 1304, 1630, 3260, 4075, 6520, 8150, 16300, 32600, 618703, 1237406, 2474812, 3093515, 4949624, 6187030, 12374060, 15467575, 24748120, 30935150, 61870300, 100848589, 123740600, 201697178, 403394356, 504242945, 806788712, 1008485890, 2016971780, 2521214725, 4033943560, 5042429450, 10084858900, 20169717800]

約数ペア:

[(1, 20169717800), (2, 10084858900), (4, 5042429450), (5, 4033943560), (8, 2521214725), (10, 2016971780), (20, 1008485890), (25, 806788712), (40, 504242945), (50, 403394356), (100, 201697178), (163, 123740600), (200, 100848589), (326, 61870300), (652, 30935150), (815, 24748120), (1304, 15467575), (1630, 12374060), (3260, 6187030), (4075, 4949624), (6520, 3093515), (8150, 2474812), (16300, 1237406), (32600, 618703)]