71281720

素因数分解:

$2^3\times 5^1\times {\mathrm{1782043}}^1$

素因数の和:1782054

約数の個数: 16

約数和(自身を含む): 160383960

約数和(自身を除く): 89102240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1782043, 3564086, 7128172, 8910215, 14256344, 17820430, 35640860, 71281720]

約数ペア:

[(1, 71281720), (2, 35640860), (4, 17820430), (5, 14256344), (8, 8910215), (10, 7128172), (20, 3564086), (40, 1782043)]