30817940

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{90641}}^1$

素因数の和:90667

約数の個数: 24

約数和(自身を含む): 68525352

約数和(自身を除く): 37707412

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 90641, 181282, 362564, 453205, 906410, 1540897, 1812820, 3081794, 6163588, 7704485, 15408970, 30817940]

約数ペア:

[(1, 30817940), (2, 15408970), (4, 7704485), (5, 6163588), (10, 3081794), (17, 1812820), (20, 1540897), (34, 906410), (68, 453205), (85, 362564), (170, 181282), (340, 90641)]