20483680

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{18289}}^1$

素因数の和:18311

約数の個数: 48

約数和(自身を含む): 55308960

約数和(自身を除く): 34825280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 18289, 36578, 73156, 91445, 128023, 146312, 182890, 256046, 292624, 365780, 512092, 585248, 640115, 731560, 1024184, 1280230, 1463120, 2048368, 2560460, 2926240, 4096736, 5120920, 10241840, 20483680]

約数ペア:

[(1, 20483680), (2, 10241840), (4, 5120920), (5, 4096736), (7, 2926240), (8, 2560460), (10, 2048368), (14, 1463120), (16, 1280230), (20, 1024184), (28, 731560), (32, 640115), (35, 585248), (40, 512092), (56, 365780), (70, 292624), (80, 256046), (112, 182890), (140, 146312), (160, 128023), (224, 91445), (280, 73156), (560, 36578), (1120, 18289)]