20805941390

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{7057}}^1\times {\mathrm{22679}}^1$

素因数の和:29756

約数の個数: 32

約数和(自身を含む): 40339010880

約数和(自身を除く): 19533069490

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 7057, 14114, 22679, 35285, 45358, 70570, 91741, 113395, 183482, 226790, 294827, 458705, 589654, 917410, 1474135, 2948270, 160045703, 320091406, 800228515, 1600457030, 2080594139, 4161188278, 10402970695, 20805941390]

約数ペア:

[(1, 20805941390), (2, 10402970695), (5, 4161188278), (10, 2080594139), (13, 1600457030), (26, 800228515), (65, 320091406), (130, 160045703), (7057, 2948270), (14114, 1474135), (22679, 917410), (35285, 589654), (45358, 458705), (70570, 294827), (91741, 226790), (113395, 183482)]