71813780

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{211217}}^1$

素因数の和:211243

約数の個数: 24

約数和(自身を含む): 159680808

約数和(自身を除く): 87867028

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 211217, 422434, 844868, 1056085, 2112170, 3590689, 4224340, 7181378, 14362756, 17953445, 35906890, 71813780]

約数ペア:

[(1, 71813780), (2, 35906890), (4, 17953445), (5, 14362756), (10, 7181378), (17, 4224340), (20, 3590689), (34, 2112170), (68, 1056085), (85, 844868), (170, 422434), (340, 211217)]