16680850

素因数分解:

$2^1\times 5^2\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{103}}^1$

素因数の和:235

約数の個数: 48

約数和(自身を含む): 32497920

約数和(自身を除く): 15817070

約数列:

[1, 2, 5, 10, 25, 41, 50, 79, 82, 103, 158, 205, 206, 395, 410, 515, 790, 1025, 1030, 1975, 2050, 2575, 3239, 3950, 4223, 5150, 6478, 8137, 8446, 16195, 16274, 21115, 32390, 40685, 42230, 80975, 81370, 105575, 161950, 203425, 211150, 333617, 406850, 667234, 1668085, 3336170, 8340425, 16680850]

約数ペア:

[(1, 16680850), (2, 8340425), (5, 3336170), (10, 1668085), (25, 667234), (41, 406850), (50, 333617), (79, 211150), (82, 203425), (103, 161950), (158, 105575), (205, 81370), (206, 80975), (395, 42230), (410, 40685), (515, 32390), (790, 21115), (1025, 16274), (1030, 16195), (1975, 8446), (2050, 8137), (2575, 6478), (3239, 5150), (3950, 4223)]