12845020

素因数分解:

$2^2\times 5^1\times {\mathrm{359}}^1\times {\mathrm{1789}}^1$

素因数の和:2157

約数の個数: 24

約数和(自身を含む): 27064800

約数和(自身を除く): 14219780

約数列:

[1, 2, 4, 5, 10, 20, 359, 718, 1436, 1789, 1795, 3578, 3590, 7156, 7180, 8945, 17890, 35780, 642251, 1284502, 2569004, 3211255, 6422510, 12845020]

約数ペア:

[(1, 12845020), (2, 6422510), (4, 3211255), (5, 2569004), (10, 1284502), (20, 642251), (359, 35780), (718, 17890), (1436, 8945), (1789, 7180), (1795, 7156), (3578, 3590)]