28464760

素因数分解:

$2^3\times 5^1\times {\mathrm{439}}^1\times {\mathrm{1621}}^1$

素因数の和:2071

約数の個数: 32

約数和(自身を含む): 64231200

約数和(自身を除く): 35766440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 439, 878, 1621, 1756, 2195, 3242, 3512, 4390, 6484, 8105, 8780, 12968, 16210, 17560, 32420, 64840, 711619, 1423238, 2846476, 3558095, 5692952, 7116190, 14232380, 28464760]

約数ペア:

[(1, 28464760), (2, 14232380), (4, 7116190), (5, 5692952), (8, 3558095), (10, 2846476), (20, 1423238), (40, 711619), (439, 64840), (878, 32420), (1621, 17560), (1756, 16210), (2195, 12968), (3242, 8780), (3512, 8105), (4390, 6484)]