81497990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{449}}^1\times {\mathrm{2593}}^1$

素因数の和:3056

約数の個数: 32

約数和(自身を含む): 168091200

約数和(自身を除く): 86593210

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 449, 898, 2245, 2593, 3143, 4490, 5186, 6286, 12965, 15715, 18151, 25930, 31430, 36302, 90755, 181510, 1164257, 2328514, 5821285, 8149799, 11642570, 16299598, 40748995, 81497990]

約数ペア:

[(1, 81497990), (2, 40748995), (5, 16299598), (7, 11642570), (10, 8149799), (14, 5821285), (35, 2328514), (70, 1164257), (449, 181510), (898, 90755), (2245, 36302), (2593, 31430), (3143, 25930), (4490, 18151), (5186, 15715), (6286, 12965)]