18667640

素因数分解:

$2^3\times 5^1\times {\mathrm{593}}^1\times {\mathrm{787}}^1$

素因数の和:1391

約数の個数: 32

約数和(自身を含む): 42126480

約数和(自身を除く): 23458840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 593, 787, 1186, 1574, 2372, 2965, 3148, 3935, 4744, 5930, 6296, 7870, 11860, 15740, 23720, 31480, 466691, 933382, 1866764, 2333455, 3733528, 4666910, 9333820, 18667640]

約数ペア:

[(1, 18667640), (2, 9333820), (4, 4666910), (5, 3733528), (8, 2333455), (10, 1866764), (20, 933382), (40, 466691), (593, 31480), (787, 23720), (1186, 15740), (1574, 11860), (2372, 7870), (2965, 6296), (3148, 5930), (3935, 4744)]