20085760

素因数分解:

$2^{10}\times 5^1\times {\mathrm{3923}}^1$

素因数の和:3948

約数の個数: 44

約数和(自身を含む): 48194568

約数和(自身を除く): 28108808

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2560, 3923, 5120, 7846, 15692, 19615, 31384, 39230, 62768, 78460, 125536, 156920, 251072, 313840, 502144, 627680, 1004288, 1255360, 2008576, 2510720, 4017152, 5021440, 10042880, 20085760]

約数ペア:

[(1, 20085760), (2, 10042880), (4, 5021440), (5, 4017152), (8, 2510720), (10, 2008576), (16, 1255360), (20, 1004288), (32, 627680), (40, 502144), (64, 313840), (80, 251072), (128, 156920), (160, 125536), (256, 78460), (320, 62768), (512, 39230), (640, 31384), (1024, 19615), (1280, 15692), (2560, 7846), (3923, 5120)]