278236460

素因数分解:

$2^2\times 5^1\times {\mathrm{1427}}^1\times {\mathrm{9749}}^1$

素因数の和:11185

約数の個数: 24

約数和(自身を含む): 584766000

約数和(自身を除く): 306529540

約数列:

[1, 2, 4, 5, 10, 20, 1427, 2854, 5708, 7135, 9749, 14270, 19498, 28540, 38996, 48745, 97490, 194980, 13911823, 27823646, 55647292, 69559115, 139118230, 278236460]

約数ペア:

[(1, 278236460), (2, 139118230), (4, 69559115), (5, 55647292), (10, 27823646), (20, 13911823), (1427, 194980), (2854, 97490), (5708, 48745), (7135, 38996), (9749, 28540), (14270, 19498)]