20440190

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{28789}}^1$

素因数の和:28867

約数の個数: 16

約数和(自身を含む): 37311840

約数和(自身を除く): 16871650

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 28789, 57578, 143945, 287890, 2044019, 4088038, 10220095, 20440190]

約数ペア:

[(1, 20440190), (2, 10220095), (5, 4088038), (10, 2044019), (71, 287890), (142, 143945), (355, 57578), (710, 28789)]