13889780

素因数分解:

$2^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{79}}^1\times {\mathrm{149}}^1$

素因数の和:296

約数の個数: 48

約数和(自身を含む): 30240000

約数和(自身を除く): 16350220

約数列:

[1, 2, 4, 5, 10, 20, 59, 79, 118, 149, 158, 236, 295, 298, 316, 395, 590, 596, 745, 790, 1180, 1490, 1580, 2980, 4661, 8791, 9322, 11771, 17582, 18644, 23305, 23542, 35164, 43955, 46610, 47084, 58855, 87910, 93220, 117710, 175820, 235420, 694489, 1388978, 2777956, 3472445, 6944890, 13889780]

約数ペア:

[(1, 13889780), (2, 6944890), (4, 3472445), (5, 2777956), (10, 1388978), (20, 694489), (59, 235420), (79, 175820), (118, 117710), (149, 93220), (158, 87910), (236, 58855), (295, 47084), (298, 46610), (316, 43955), (395, 35164), (590, 23542), (596, 23305), (745, 18644), (790, 17582), (1180, 11771), (1490, 9322), (1580, 8791), (2980, 4661)]