13987540

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{2039}}^1$

素因数の和:2069

約数の個数: 48

約数和(自身を含む): 34272000

約数和(自身を除く): 20284460

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 490, 686, 980, 1372, 1715, 2039, 3430, 4078, 6860, 8156, 10195, 14273, 20390, 28546, 40780, 57092, 71365, 99911, 142730, 199822, 285460, 399644, 499555, 699377, 999110, 1398754, 1998220, 2797508, 3496885, 6993770, 13987540]

約数ペア:

[(1, 13987540), (2, 6993770), (4, 3496885), (5, 2797508), (7, 1998220), (10, 1398754), (14, 999110), (20, 699377), (28, 499555), (35, 399644), (49, 285460), (70, 199822), (98, 142730), (140, 99911), (196, 71365), (245, 57092), (343, 40780), (490, 28546), (686, 20390), (980, 14273), (1372, 10195), (1715, 8156), (2039, 6860), (3430, 4078)]