39628280

素因数分解:

$2^3\times 5^1\times {\mathrm{990707}}^1$

素因数の和:990718

約数の個数: 16

約数和(自身を含む): 89163720

約数和(自身を除く): 49535440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 990707, 1981414, 3962828, 4953535, 7925656, 9907070, 19814140, 39628280]

約数ペア:

[(1, 39628280), (2, 19814140), (4, 9907070), (5, 7925656), (8, 4953535), (10, 3962828), (20, 1981414), (40, 990707)]