813079040

素因数分解:

$2^9\times 5^1\times {\mathrm{317609}}^1$

素因数の和:317632

約数の個数: 40

約数和(自身を含む): 1949490180

約数和(自身を除く): 1136411140

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 317609, 635218, 1270436, 1588045, 2540872, 3176090, 5081744, 6352180, 10163488, 12704360, 20326976, 25408720, 40653952, 50817440, 81307904, 101634880, 162615808, 203269760, 406539520, 813079040]

約数ペア:

[(1, 813079040), (2, 406539520), (4, 203269760), (5, 162615808), (8, 101634880), (10, 81307904), (16, 50817440), (20, 40653952), (32, 25408720), (40, 20326976), (64, 12704360), (80, 10163488), (128, 6352180), (160, 5081744), (256, 3176090), (320, 2540872), (512, 1588045), (640, 1270436), (1280, 635218), (2560, 317609)]