18436040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{65843}}^1$

素因数の和:65861

約数の個数: 32

約数和(自身を含む): 47407680

約数和(自身を除く): 28971640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 65843, 131686, 263372, 329215, 460901, 526744, 658430, 921802, 1316860, 1843604, 2304505, 2633720, 3687208, 4609010, 9218020, 18436040]

約数ペア:

[(1, 18436040), (2, 9218020), (4, 4609010), (5, 3687208), (7, 2633720), (8, 2304505), (10, 1843604), (14, 1316860), (20, 921802), (28, 658430), (35, 526744), (40, 460901), (56, 329215), (70, 263372), (140, 131686), (280, 65843)]