2640040

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{5077}}^1$

素因数の和:5101

約数の個数: 32

約数和(自身を含む): 6398280

約数和(自身を除く): 3758240

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 5077, 10154, 20308, 25385, 40616, 50770, 66001, 101540, 132002, 203080, 264004, 330005, 528008, 660010, 1320020, 2640040]

約数ペア:

[(1, 2640040), (2, 1320020), (4, 660010), (5, 528008), (8, 330005), (10, 264004), (13, 203080), (20, 132002), (26, 101540), (40, 66001), (52, 50770), (65, 40616), (104, 25385), (130, 20308), (260, 10154), (520, 5077)]