8280040

素因数分解:

$2^3\times 5^1\times {\mathrm{317}}^1\times {\mathrm{653}}^1$

素因数の和:981

約数の個数: 32

約数和(自身を含む): 18717480

約数和(自身を除く): 10437440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 317, 634, 653, 1268, 1306, 1585, 2536, 2612, 3170, 3265, 5224, 6340, 6530, 12680, 13060, 26120, 207001, 414002, 828004, 1035005, 1656008, 2070010, 4140020, 8280040]

約数ペア:

[(1, 8280040), (2, 4140020), (4, 2070010), (5, 1656008), (8, 1035005), (10, 828004), (20, 414002), (40, 207001), (317, 26120), (634, 13060), (653, 12680), (1268, 6530), (1306, 6340), (1585, 5224), (2536, 3265), (2612, 3170)]