8381440

素因数分解:

$2^{10}\times 5^1\times {\mathrm{1637}}^1$

素因数の和:1662

約数の個数: 44

約数和(自身を含む): 20117916

約数和(自身を除く): 11736476

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 1637, 2560, 3274, 5120, 6548, 8185, 13096, 16370, 26192, 32740, 52384, 65480, 104768, 130960, 209536, 261920, 419072, 523840, 838144, 1047680, 1676288, 2095360, 4190720, 8381440]

約数ペア:

[(1, 8381440), (2, 4190720), (4, 2095360), (5, 1676288), (8, 1047680), (10, 838144), (16, 523840), (20, 419072), (32, 261920), (40, 209536), (64, 130960), (80, 104768), (128, 65480), (160, 52384), (256, 32740), (320, 26192), (512, 16370), (640, 13096), (1024, 8185), (1280, 6548), (1637, 5120), (2560, 3274)]