689012240

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{1230379}}^1$

素因数の和:1230399

約数の個数: 40

約数和(自身を含む): 1830805440

約数和(自身を除く): 1141793200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 1230379, 2460758, 4921516, 6151895, 8612653, 9843032, 12303790, 17225306, 19686064, 24607580, 34450612, 43063265, 49215160, 68901224, 86126530, 98430320, 137802448, 172253060, 344506120, 689012240]

約数ペア:

[(1, 689012240), (2, 344506120), (4, 172253060), (5, 137802448), (7, 98430320), (8, 86126530), (10, 68901224), (14, 49215160), (16, 43063265), (20, 34450612), (28, 24607580), (35, 19686064), (40, 17225306), (56, 12303790), (70, 9843032), (80, 8612653), (112, 6151895), (140, 4921516), (280, 2460758), (560, 1230379)]