20768210

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{29251}}^1$

素因数の和:29329

約数の個数: 16

約数和(自身を含む): 37910592

約数和(自身を除く): 17142382

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 29251, 58502, 146255, 292510, 2076821, 4153642, 10384105, 20768210]

約数ペア:

[(1, 20768210), (2, 10384105), (5, 4153642), (10, 2076821), (71, 292510), (142, 146255), (355, 58502), (710, 29251)]