20740070

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{159539}}^1$

素因数の和:159559

約数の個数: 16

約数和(自身を含む): 40204080

約数和(自身を除く): 19464010

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 159539, 319078, 797695, 1595390, 2074007, 4148014, 10370035, 20740070]

約数ペア:

[(1, 20740070), (2, 10370035), (5, 4148014), (10, 2074007), (13, 1595390), (26, 797695), (65, 319078), (130, 159539)]