40721380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{181}}^1\times {\mathrm{1607}}^1$

素因数の和:1804

約数の個数: 48

約数和(自身を含む): 98332416

約数和(自身を除く): 57611036

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 181, 362, 724, 905, 1267, 1607, 1810, 2534, 3214, 3620, 5068, 6335, 6428, 8035, 11249, 12670, 16070, 22498, 25340, 32140, 44996, 56245, 112490, 224980, 290867, 581734, 1163468, 1454335, 2036069, 2908670, 4072138, 5817340, 8144276, 10180345, 20360690, 40721380]

約数ペア:

[(1, 40721380), (2, 20360690), (4, 10180345), (5, 8144276), (7, 5817340), (10, 4072138), (14, 2908670), (20, 2036069), (28, 1454335), (35, 1163468), (70, 581734), (140, 290867), (181, 224980), (362, 112490), (724, 56245), (905, 44996), (1267, 32140), (1607, 25340), (1810, 22498), (2534, 16070), (3214, 12670), (3620, 11249), (5068, 8035), (6335, 6428)]