18853804580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{72514633}}^1$

素因数の和:72514655

約数の個数: 24

約数和(自身を含む): 42638604792

約数和(自身を除く): 23784800212

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 72514633, 145029266, 290058532, 362573165, 725146330, 942690229, 1450292660, 1885380458, 3770760916, 4713451145, 9426902290, 18853804580]

約数ペア:

[(1, 18853804580), (2, 9426902290), (4, 4713451145), (5, 3770760916), (10, 1885380458), (13, 1450292660), (20, 942690229), (26, 725146330), (52, 362573165), (65, 290058532), (130, 145029266), (260, 72514633)]