637720

素因数分解:

$2^3\times 5^1\times {\mathrm{107}}^1\times {\mathrm{149}}^1$

素因数の和:267

約数の個数: 32

約数和(自身を含む): 1458000

約数和(自身を除く): 820280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 107, 149, 214, 298, 428, 535, 596, 745, 856, 1070, 1192, 1490, 2140, 2980, 4280, 5960, 15943, 31886, 63772, 79715, 127544, 159430, 318860, 637720]

約数ペア:

[(1, 637720), (2, 318860), (4, 159430), (5, 127544), (8, 79715), (10, 63772), (20, 31886), (40, 15943), (107, 5960), (149, 4280), (214, 2980), (298, 2140), (428, 1490), (535, 1192), (596, 1070), (745, 856)]