691040

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{617}}^1$

素因数の和:639

約数の個数: 48

約数和(自身を含む): 1868832

約数和(自身を除く): 1177792

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 617, 1120, 1234, 2468, 3085, 4319, 4936, 6170, 8638, 9872, 12340, 17276, 19744, 21595, 24680, 34552, 43190, 49360, 69104, 86380, 98720, 138208, 172760, 345520, 691040]

約数ペア:

[(1, 691040), (2, 345520), (4, 172760), (5, 138208), (7, 98720), (8, 86380), (10, 69104), (14, 49360), (16, 43190), (20, 34552), (28, 24680), (32, 21595), (35, 19744), (40, 17276), (56, 12340), (70, 9872), (80, 8638), (112, 6170), (140, 4936), (160, 4319), (224, 3085), (280, 2468), (560, 1234), (617, 1120)]