64656465

素因数分解:

$3^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{137}}^1\times {\mathrm{431}}^1$

素因数の和:649

約数の個数: 32

約数和(自身を含む): 105878016

約数和(自身を除く): 41221551

約数列:

[1, 3, 5, 15, 73, 137, 219, 365, 411, 431, 685, 1095, 1293, 2055, 2155, 6465, 10001, 30003, 31463, 50005, 59047, 94389, 150015, 157315, 177141, 295235, 471945, 885705, 4310431, 12931293, 21552155, 64656465]

約数ペア:

[(1, 64656465), (3, 21552155), (5, 12931293), (15, 4310431), (73, 885705), (137, 471945), (219, 295235), (365, 177141), (411, 157315), (431, 150015), (685, 94389), (1095, 59047), (1293, 50005), (2055, 31463), (2155, 30003), (6465, 10001)]