805211860

素因数分解:

$2^2\times 5^1\times {\mathrm{1993}}^1\times {\mathrm{20201}}^1$

素因数の和:22203

約数の個数: 24

約数和(自身を含む): 1691877096

約数和(自身を除く): 886665236

約数列:

[1, 2, 4, 5, 10, 20, 1993, 3986, 7972, 9965, 19930, 20201, 39860, 40402, 80804, 101005, 202010, 404020, 40260593, 80521186, 161042372, 201302965, 402605930, 805211860]

約数ペア:

[(1, 805211860), (2, 402605930), (4, 201302965), (5, 161042372), (10, 80521186), (20, 40260593), (1993, 404020), (3986, 202010), (7972, 101005), (9965, 80804), (19930, 40402), (20201, 39860)]