17788240

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{5171}}^1$

素因数の和:5227

約数の個数: 40

約数和(自身を含む): 42327648

約数和(自身を除く): 24539408

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 5171, 10342, 20684, 25855, 41368, 51710, 82736, 103420, 206840, 222353, 413680, 444706, 889412, 1111765, 1778824, 2223530, 3557648, 4447060, 8894120, 17788240]

約数ペア:

[(1, 17788240), (2, 8894120), (4, 4447060), (5, 3557648), (8, 2223530), (10, 1778824), (16, 1111765), (20, 889412), (40, 444706), (43, 413680), (80, 222353), (86, 206840), (172, 103420), (215, 82736), (344, 51710), (430, 41368), (688, 25855), (860, 20684), (1720, 10342), (3440, 5171)]