20869120

素因数分解:

$2^{12}\times 5^1\times {\mathrm{1019}}^1$

素因数の和:1048

約数の個数: 52

約数和(自身を含む): 50128920

約数和(自身を除く): 29259800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1019, 1024, 1280, 2038, 2048, 2560, 4076, 4096, 5095, 5120, 8152, 10190, 10240, 16304, 20380, 20480, 32608, 40760, 65216, 81520, 130432, 163040, 260864, 326080, 521728, 652160, 1043456, 1304320, 2086912, 2608640, 4173824, 5217280, 10434560, 20869120]

約数ペア:

[(1, 20869120), (2, 10434560), (4, 5217280), (5, 4173824), (8, 2608640), (10, 2086912), (16, 1304320), (20, 1043456), (32, 652160), (40, 521728), (64, 326080), (80, 260864), (128, 163040), (160, 130432), (256, 81520), (320, 65216), (512, 40760), (640, 32608), (1019, 20480), (1024, 20380), (1280, 16304), (2038, 10240), (2048, 10190), (2560, 8152), (4076, 5120), (4096, 5095)]