18404680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{65731}}^1$

素因数の和:65749

約数の個数: 32

約数和(自身を含む): 47327040

約数和(自身を除く): 28922360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 65731, 131462, 262924, 328655, 460117, 525848, 657310, 920234, 1314620, 1840468, 2300585, 2629240, 3680936, 4601170, 9202340, 18404680]

約数ペア:

[(1, 18404680), (2, 9202340), (4, 4601170), (5, 3680936), (7, 2629240), (8, 2300585), (10, 1840468), (14, 1314620), (20, 920234), (28, 657310), (35, 525848), (40, 460117), (56, 328655), (70, 262924), (140, 131462), (280, 65731)]