28716255

素因数分解:

$3^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{5749}}^1$

素因数の和:5800

約数の個数: 32

約数和(自身を含む): 52440000

約数和(自身を除く): 23723745

約数列:

[1, 3, 5, 9, 15, 27, 37, 45, 111, 135, 185, 333, 555, 999, 1665, 4995, 5749, 17247, 28745, 51741, 86235, 155223, 212713, 258705, 638139, 776115, 1063565, 1914417, 3190695, 5743251, 9572085, 28716255]

約数ペア:

[(1, 28716255), (3, 9572085), (5, 5743251), (9, 3190695), (15, 1914417), (27, 1063565), (37, 776115), (45, 638139), (111, 258705), (135, 212713), (185, 155223), (333, 86235), (555, 51741), (999, 28745), (1665, 17247), (4995, 5749)]