40007990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{2441}}^1$

素因数の和:2608

約数の個数: 32

約数和(自身を含む): 79120800

約数和(自身を除く): 39112810

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 149, 298, 745, 1490, 1639, 2441, 3278, 4882, 8195, 12205, 16390, 24410, 26851, 53702, 134255, 268510, 363709, 727418, 1818545, 3637090, 4000799, 8001598, 20003995, 40007990]

約数ペア:

[(1, 40007990), (2, 20003995), (5, 8001598), (10, 4000799), (11, 3637090), (22, 1818545), (55, 727418), (110, 363709), (149, 268510), (298, 134255), (745, 53702), (1490, 26851), (1639, 24410), (2441, 16390), (3278, 12205), (4882, 8195)]