20565391684

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{71}}^1\times {\mathrm{200591}}^1$

素因数の和:200704

約数の個数: 36

約数和(自身を含む): 38518478208

約数和(自身を除く): 17953086524

約数列:

[1, 2, 4, 19, 38, 71, 76, 142, 284, 361, 722, 1349, 1444, 2698, 5396, 25631, 51262, 102524, 200591, 401182, 802364, 3811229, 7622458, 14241961, 15244916, 28483922, 56967844, 72413351, 144826702, 270597259, 289653404, 541194518, 1082389036, 5141347921, 10282695842, 20565391684]

約数ペア:

[(1, 20565391684), (2, 10282695842), (4, 5141347921), (19, 1082389036), (38, 541194518), (71, 289653404), (76, 270597259), (142, 144826702), (284, 72413351), (361, 56967844), (722, 28483922), (1349, 15244916), (1444, 14241961), (2698, 7622458), (5396, 3811229), (25631, 802364), (51262, 401182), (102524, 200591)]