18519080

素因数分解:

$2^3\times 5^1\times {\mathrm{653}}^1\times {\mathrm{709}}^1$

素因数の和:1373

約数の個数: 32

約数和(自身を含む): 41790600

約数和(自身を除く): 23271520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 653, 709, 1306, 1418, 2612, 2836, 3265, 3545, 5224, 5672, 6530, 7090, 13060, 14180, 26120, 28360, 462977, 925954, 1851908, 2314885, 3703816, 4629770, 9259540, 18519080]

約数ペア:

[(1, 18519080), (2, 9259540), (4, 4629770), (5, 3703816), (8, 2314885), (10, 1851908), (20, 925954), (40, 462977), (653, 28360), (709, 26120), (1306, 14180), (1418, 13060), (2612, 7090), (2836, 6530), (3265, 5672), (3545, 5224)]