9892840

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{2269}}^1$

素因数の和:2389

約数の個数: 32

約数和(自身を含む): 22473000

約数和(自身を除く): 12580160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 2269, 4360, 4538, 9076, 11345, 18152, 22690, 45380, 90760, 247321, 494642, 989284, 1236605, 1978568, 2473210, 4946420, 9892840]

約数ペア:

[(1, 9892840), (2, 4946420), (4, 2473210), (5, 1978568), (8, 1236605), (10, 989284), (20, 494642), (40, 247321), (109, 90760), (218, 45380), (436, 22690), (545, 18152), (872, 11345), (1090, 9076), (2180, 4538), (2269, 4360)]