278323220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1988023}}^1$

素因数の和:1988039

約数の個数: 24

約数和(自身を含む): 667976064

約数和(自身を除く): 389652844

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1988023, 3976046, 7952092, 9940115, 13916161, 19880230, 27832322, 39760460, 55664644, 69580805, 139161610, 278323220]

約数ペア:

[(1, 278323220), (2, 139161610), (4, 69580805), (5, 55664644), (7, 39760460), (10, 27832322), (14, 19880230), (20, 13916161), (28, 9940115), (35, 7952092), (70, 3976046), (140, 1988023)]