65445220

素因数分解:

$2^2\times 5^1\times {\mathrm{1399}}^1\times {\mathrm{2339}}^1$

素因数の和:3747

約数の個数: 24

約数和(自身を含む): 137592000

約数和(自身を除く): 72146780

約数列:

[1, 2, 4, 5, 10, 20, 1399, 2339, 2798, 4678, 5596, 6995, 9356, 11695, 13990, 23390, 27980, 46780, 3272261, 6544522, 13089044, 16361305, 32722610, 65445220]

約数ペア:

[(1, 65445220), (2, 32722610), (4, 16361305), (5, 13089044), (10, 6544522), (20, 3272261), (1399, 46780), (2339, 27980), (2798, 23390), (4678, 13990), (5596, 11695), (6995, 9356)]