71840980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{211297}}^1$

素因数の和:211323

約数の個数: 24

約数和(自身を含む): 159741288

約数和(自身を除く): 87900308

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 211297, 422594, 845188, 1056485, 2112970, 3592049, 4225940, 7184098, 14368196, 17960245, 35920490, 71840980]

約数ペア:

[(1, 71840980), (2, 35920490), (4, 17960245), (5, 14368196), (10, 7184098), (17, 4225940), (20, 3592049), (34, 2112970), (68, 1056485), (85, 845188), (170, 422594), (340, 211297)]