64000040

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{123077}}^1$

素因数の和:123101

約数の個数: 32

約数和(自身を含む): 155078280

約数和(自身を除く): 91078240

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 123077, 246154, 492308, 615385, 984616, 1230770, 1600001, 2461540, 3200002, 4923080, 6400004, 8000005, 12800008, 16000010, 32000020, 64000040]

約数ペア:

[(1, 64000040), (2, 32000020), (4, 16000010), (5, 12800008), (8, 8000005), (10, 6400004), (13, 4923080), (20, 3200002), (26, 2461540), (40, 1600001), (52, 1230770), (65, 984616), (104, 615385), (130, 492308), (260, 246154), (520, 123077)]