18812740

素因数分解:

$2^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{107}}^1\times {\mathrm{149}}^1$

素因数の和:324

約数の個数: 48

約数和(自身を含む): 40824000

約数和(自身を除く): 22011260

約数列:

[1, 2, 4, 5, 10, 20, 59, 107, 118, 149, 214, 236, 295, 298, 428, 535, 590, 596, 745, 1070, 1180, 1490, 2140, 2980, 6313, 8791, 12626, 15943, 17582, 25252, 31565, 31886, 35164, 43955, 63130, 63772, 79715, 87910, 126260, 159430, 175820, 318860, 940637, 1881274, 3762548, 4703185, 9406370, 18812740]

約数ペア:

[(1, 18812740), (2, 9406370), (4, 4703185), (5, 3762548), (10, 1881274), (20, 940637), (59, 318860), (107, 175820), (118, 159430), (149, 126260), (214, 87910), (236, 79715), (295, 63772), (298, 63130), (428, 43955), (535, 35164), (590, 31886), (596, 31565), (745, 25252), (1070, 17582), (1180, 15943), (1490, 12626), (2140, 8791), (2980, 6313)]