31363960

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{5641}}^1$

素因数の和:5791

約数の個数: 32

約数和(自身を含む): 71089200

約数和(自身を除く): 39725240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 5560, 5641, 11282, 22564, 28205, 45128, 56410, 112820, 225640, 784099, 1568198, 3136396, 3920495, 6272792, 7840990, 15681980, 31363960]

約数ペア:

[(1, 31363960), (2, 15681980), (4, 7840990), (5, 6272792), (8, 3920495), (10, 3136396), (20, 1568198), (40, 784099), (139, 225640), (278, 112820), (556, 56410), (695, 45128), (1112, 28205), (1390, 22564), (2780, 11282), (5560, 5641)]