18062870

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{191}}^1\times {\mathrm{193}}^1$

素因数の和:405

約数の個数: 48

約数和(自身を含む): 38216448

約数和(自身を除く): 20153578

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 191, 193, 245, 382, 386, 490, 955, 965, 1337, 1351, 1910, 1930, 2674, 2702, 6685, 6755, 9359, 9457, 13370, 13510, 18718, 18914, 36863, 46795, 47285, 73726, 93590, 94570, 184315, 258041, 368630, 516082, 1290205, 1806287, 2580410, 3612574, 9031435, 18062870]

約数ペア:

[(1, 18062870), (2, 9031435), (5, 3612574), (7, 2580410), (10, 1806287), (14, 1290205), (35, 516082), (49, 368630), (70, 258041), (98, 184315), (191, 94570), (193, 93590), (245, 73726), (382, 47285), (386, 46795), (490, 36863), (955, 18914), (965, 18718), (1337, 13510), (1351, 13370), (1910, 9457), (1930, 9359), (2674, 6755), (2702, 6685)]