251985920

素因数分解:

$2^{16}\times 5^1\times {\mathrm{769}}^1$

素因数の和:806

約数の個数: 68

約数和(自身を含む): 605548020

約数和(自身を除く): 353562100

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 769, 1024, 1280, 1538, 2048, 2560, 3076, 3845, 4096, 5120, 6152, 7690, 8192, 10240, 12304, 15380, 16384, 20480, 24608, 30760, 32768, 40960, 49216, 61520, 65536, 81920, 98432, 123040, 163840, 196864, 246080, 327680, 393728, 492160, 787456, 984320, 1574912, 1968640, 3149824, 3937280, 6299648, 7874560, 12599296, 15749120, 25198592, 31498240, 50397184, 62996480, 125992960, 251985920]

約数ペア:

[(1, 251985920), (2, 125992960), (4, 62996480), (5, 50397184), (8, 31498240), (10, 25198592), (16, 15749120), (20, 12599296), (32, 7874560), (40, 6299648), (64, 3937280), (80, 3149824), (128, 1968640), (160, 1574912), (256, 984320), (320, 787456), (512, 492160), (640, 393728), (769, 327680), (1024, 246080), (1280, 196864), (1538, 163840), (2048, 123040), (2560, 98432), (3076, 81920), (3845, 65536), (4096, 61520), (5120, 49216), (6152, 40960), (7690, 32768), (8192, 30760), (10240, 24608), (12304, 20480), (15380, 16384)]