20556590

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{26021}}^1$

素因数の和:26107

約数の個数: 16

約数和(自身を含む): 37471680

約数和(自身を除く): 16915090

約数列:

[1, 2, 5, 10, 79, 158, 395, 790, 26021, 52042, 130105, 260210, 2055659, 4111318, 10278295, 20556590]

約数ペア:

[(1, 20556590), (2, 10278295), (5, 4111318), (10, 2055659), (79, 260210), (158, 130105), (395, 52042), (790, 26021)]