320771920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{572807}}^1$

素因数の和:572827

約数の個数: 40

約数和(自身を含む): 852338304

約数和(自身を除く): 531566384

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 572807, 1145614, 2291228, 2864035, 4009649, 4582456, 5728070, 8019298, 9164912, 11456140, 16038596, 20048245, 22912280, 32077192, 40096490, 45824560, 64154384, 80192980, 160385960, 320771920]

約数ペア:

[(1, 320771920), (2, 160385960), (4, 80192980), (5, 64154384), (7, 45824560), (8, 40096490), (10, 32077192), (14, 22912280), (16, 20048245), (20, 16038596), (28, 11456140), (35, 9164912), (40, 8019298), (56, 5728070), (70, 4582456), (80, 4009649), (112, 2864035), (140, 2291228), (280, 1145614), (560, 572807)]