19809530

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{152381}}^1$

素因数の和:152401

約数の個数: 16

約数和(自身を含む): 38400264

約数和(自身を除く): 18590734

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 152381, 304762, 761905, 1523810, 1980953, 3961906, 9904765, 19809530]

約数ペア:

[(1, 19809530), (2, 9904765), (5, 3961906), (10, 1980953), (13, 1523810), (26, 761905), (65, 304762), (130, 152381)]