20168072900

素因数分解:

$2^2\times 5^2\times {\mathrm{199}}^1\times {\mathrm{1013471}}^1$

素因数の和:1013684

約数の個数: 36

約数和(自身を含む): 43984684800

約数和(自身を除く): 23816611900

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 199, 398, 796, 995, 1990, 3980, 4975, 9950, 19900, 1013471, 2026942, 4053884, 5067355, 10134710, 20269420, 25336775, 50673550, 101347100, 201680729, 403361458, 806722916, 1008403645, 2016807290, 4033614580, 5042018225, 10084036450, 20168072900]

約数ペア:

[(1, 20168072900), (2, 10084036450), (4, 5042018225), (5, 4033614580), (10, 2016807290), (20, 1008403645), (25, 806722916), (50, 403361458), (100, 201680729), (199, 101347100), (398, 50673550), (796, 25336775), (995, 20269420), (1990, 10134710), (3980, 5067355), (4975, 4053884), (9950, 2026942), (19900, 1013471)]