134980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{397}}^1$

素因数の和:423

約数の個数: 24

約数和(自身を含む): 300888

約数和(自身を除く): 165908

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 397, 794, 1588, 1985, 3970, 6749, 7940, 13498, 26996, 33745, 67490, 134980]

約数ペア:

[(1, 134980), (2, 67490), (4, 33745), (5, 26996), (10, 13498), (17, 7940), (20, 6749), (34, 3970), (68, 1985), (85, 1588), (170, 794), (340, 397)]