278896540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{18181}}^1$

素因数の和:18262

約数の個数: 48

約数和(自身を含む): 641460960

約数和(自身を除く): 362564420

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 59, 65, 118, 130, 236, 260, 295, 590, 767, 1180, 1534, 3068, 3835, 7670, 15340, 18181, 36362, 72724, 90905, 181810, 236353, 363620, 472706, 945412, 1072679, 1181765, 2145358, 2363530, 4290716, 4727060, 5363395, 10726790, 13944827, 21453580, 27889654, 55779308, 69724135, 139448270, 278896540]

約数ペア:

[(1, 278896540), (2, 139448270), (4, 69724135), (5, 55779308), (10, 27889654), (13, 21453580), (20, 13944827), (26, 10726790), (52, 5363395), (59, 4727060), (65, 4290716), (118, 2363530), (130, 2145358), (236, 1181765), (260, 1072679), (295, 945412), (590, 472706), (767, 363620), (1180, 236353), (1534, 181810), (3068, 90905), (3835, 72724), (7670, 36362), (15340, 18181)]