12819775

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{197}}^1$

素因数の和:363

約数の個数: 24

約数和(自身を含む): 16940880

約数和(自身を除く): 4121105

約数列:

[1, 5, 19, 25, 95, 137, 197, 475, 685, 985, 2603, 3425, 3743, 4925, 13015, 18715, 26989, 65075, 93575, 134945, 512791, 674725, 2563955, 12819775]

約数ペア:

[(1, 12819775), (5, 2563955), (19, 674725), (25, 512791), (95, 134945), (137, 93575), (197, 65075), (475, 26989), (685, 18715), (985, 13015), (2603, 4925), (3425, 3743)]