12804519890

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{14387101}}^1$

素因数の和:14387197

約数の個数: 16

約数和(自身を含む): 23307105240

約数和(自身を除く): 10502585350

約数列:

[1, 2, 5, 10, 89, 178, 445, 890, 14387101, 28774202, 71935505, 143871010, 1280451989, 2560903978, 6402259945, 12804519890]

約数ペア:

[(1, 12804519890), (2, 6402259945), (5, 2560903978), (10, 1280451989), (89, 143871010), (178, 71935505), (445, 28774202), (890, 14387101)]