168202280

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{135647}}^1$

素因数の和:135689

約数の個数: 32

約数和(自身を含む): 390666240

約数和(自身を除く): 222463960

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 135647, 271294, 542588, 678235, 1085176, 1356470, 2712940, 4205057, 5425880, 8410114, 16820228, 21025285, 33640456, 42050570, 84101140, 168202280]

約数ペア:

[(1, 168202280), (2, 84101140), (4, 42050570), (5, 33640456), (8, 21025285), (10, 16820228), (20, 8410114), (31, 5425880), (40, 4205057), (62, 2712940), (124, 1356470), (155, 1085176), (248, 678235), (310, 542588), (620, 271294), (1240, 135647)]