42405140

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{124721}}^1$

素因数の和:124747

約数の個数: 24

約数和(自身を含む): 94289832

約数和(自身を除く): 51884692

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 124721, 249442, 498884, 623605, 1247210, 2120257, 2494420, 4240514, 8481028, 10601285, 21202570, 42405140]

約数ペア:

[(1, 42405140), (2, 21202570), (4, 10601285), (5, 8481028), (10, 4240514), (17, 2494420), (20, 2120257), (34, 1247210), (68, 623605), (85, 498884), (170, 249442), (340, 124721)]