16720180

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{49177}}^1$

素因数の和:49203

約数の個数: 24

約数和(自身を含む): 37178568

約数和(自身を除く): 20458388

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 49177, 98354, 196708, 245885, 491770, 836009, 983540, 1672018, 3344036, 4180045, 8360090, 16720180]

約数ペア:

[(1, 16720180), (2, 8360090), (4, 4180045), (5, 3344036), (10, 1672018), (17, 983540), (20, 836009), (34, 491770), (68, 245885), (85, 196708), (170, 98354), (340, 49177)]