2205990

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{193}}^1$

素因数の和:333

約数の個数: 48

約数和(自身を含む): 5810688

約数和(自身を除く): 3604698

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 127, 193, 254, 381, 386, 579, 635, 762, 965, 1143, 1158, 1270, 1737, 1905, 1930, 2286, 2895, 3474, 3810, 5715, 5790, 8685, 11430, 17370, 24511, 49022, 73533, 122555, 147066, 220599, 245110, 367665, 441198, 735330, 1102995, 2205990]

約数ペア:

[(1, 2205990), (2, 1102995), (3, 735330), (5, 441198), (6, 367665), (9, 245110), (10, 220599), (15, 147066), (18, 122555), (30, 73533), (45, 49022), (90, 24511), (127, 17370), (193, 11430), (254, 8685), (381, 5790), (386, 5715), (579, 3810), (635, 3474), (762, 2895), (965, 2286), (1143, 1930), (1158, 1905), (1270, 1737)]