505447930

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{21481}}^1$

素因数の和:21682

約数の個数: 32

約数和(自身を含む): 985250448

約数和(自身を除く): 479802518

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 181, 362, 905, 1810, 2353, 4706, 11765, 21481, 23530, 42962, 107405, 214810, 279253, 558506, 1396265, 2792530, 3888061, 7776122, 19440305, 38880610, 50544793, 101089586, 252723965, 505447930]

約数ペア:

[(1, 505447930), (2, 252723965), (5, 101089586), (10, 50544793), (13, 38880610), (26, 19440305), (65, 7776122), (130, 3888061), (181, 2792530), (362, 1396265), (905, 558506), (1810, 279253), (2353, 214810), (4706, 107405), (11765, 42962), (21481, 23530)]