28326645

素因数分解:

$3^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{107}}^1$

素因数の和:211

約数の個数: 64

約数和(自身を含む): 53187840

約数和(自身を除く): 24861195

約数列:

[1, 3, 5, 9, 15, 27, 37, 45, 53, 107, 111, 135, 159, 185, 265, 321, 333, 477, 535, 555, 795, 963, 999, 1431, 1605, 1665, 1961, 2385, 2889, 3959, 4815, 4995, 5671, 5883, 7155, 9805, 11877, 14445, 17013, 17649, 19795, 28355, 29415, 35631, 51039, 52947, 59385, 85065, 88245, 106893, 153117, 178155, 209827, 255195, 264735, 534465, 629481, 765585, 1049135, 1888443, 3147405, 5665329, 9442215, 28326645]

約数ペア:

[(1, 28326645), (3, 9442215), (5, 5665329), (9, 3147405), (15, 1888443), (27, 1049135), (37, 765585), (45, 629481), (53, 534465), (107, 264735), (111, 255195), (135, 209827), (159, 178155), (185, 153117), (265, 106893), (321, 88245), (333, 85065), (477, 59385), (535, 52947), (555, 51039), (795, 35631), (963, 29415), (999, 28355), (1431, 19795), (1605, 17649), (1665, 17013), (1961, 14445), (2385, 11877), (2889, 9805), (3959, 7155), (4815, 5883), (4995, 5671)]