42390890

素因数分解:

$2^1\times 5^1\times {\mathrm{1321}}^1\times {\mathrm{3209}}^1$

素因数の和:4537

約数の個数: 16

約数和(自身を含む): 76385160

約数和(自身を除く): 33994270

約数列:

[1, 2, 5, 10, 1321, 2642, 3209, 6418, 6605, 13210, 16045, 32090, 4239089, 8478178, 21195445, 42390890]

約数ペア:

[(1, 42390890), (2, 21195445), (5, 8478178), (10, 4239089), (1321, 32090), (2642, 16045), (3209, 13210), (6418, 6605)]