28031960

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{63709}}^1$

素因数の和:63731

約数の個数: 32

約数和(自身を含む): 68806800

約数和(自身を除く): 40774840

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 63709, 127418, 254836, 318545, 509672, 637090, 700799, 1274180, 1401598, 2548360, 2803196, 3503995, 5606392, 7007990, 14015980, 28031960]

約数ペア:

[(1, 28031960), (2, 14015980), (4, 7007990), (5, 5606392), (8, 3503995), (10, 2803196), (11, 2548360), (20, 1401598), (22, 1274180), (40, 700799), (44, 637090), (55, 509672), (88, 318545), (110, 254836), (220, 127418), (440, 63709)]