81945200

素因数分解:

$2^4\times 5^2\times {\mathrm{349}}^1\times {\mathrm{587}}^1$

素因数の和:954

約数の個数: 60

約数和(自身を含む): 197773800

約数和(自身を除く): 115828600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 349, 400, 587, 698, 1174, 1396, 1745, 2348, 2792, 2935, 3490, 4696, 5584, 5870, 6980, 8725, 9392, 11740, 13960, 14675, 17450, 23480, 27920, 29350, 34900, 46960, 58700, 69800, 117400, 139600, 204863, 234800, 409726, 819452, 1024315, 1638904, 2048630, 3277808, 4097260, 5121575, 8194520, 10243150, 16389040, 20486300, 40972600, 81945200]

約数ペア:

[(1, 81945200), (2, 40972600), (4, 20486300), (5, 16389040), (8, 10243150), (10, 8194520), (16, 5121575), (20, 4097260), (25, 3277808), (40, 2048630), (50, 1638904), (80, 1024315), (100, 819452), (200, 409726), (349, 234800), (400, 204863), (587, 139600), (698, 117400), (1174, 69800), (1396, 58700), (1745, 46960), (2348, 34900), (2792, 29350), (2935, 27920), (3490, 23480), (4696, 17450), (5584, 14675), (5870, 13960), (6980, 11740), (8725, 9392)]