28748173870

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{221139799}}^1$

素因数の和:221139819

約数の個数: 16

約数和(自身を含む): 55727229600

約数和(自身を除く): 26979055730

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 221139799, 442279598, 1105698995, 2211397990, 2874817387, 5749634774, 14374086935, 28748173870]

約数ペア:

[(1, 28748173870), (2, 14374086935), (5, 5749634774), (10, 2874817387), (13, 2211397990), (26, 1105698995), (65, 442279598), (130, 221139799)]