87909890

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{181}}^1\times {\mathrm{2857}}^1$

素因数の和:3062

約数の個数: 32

約数和(自身を含む): 168530544

約数和(自身を除く): 80620654

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 181, 362, 905, 1810, 2857, 3077, 5714, 6154, 14285, 15385, 28570, 30770, 48569, 97138, 242845, 485690, 517117, 1034234, 2585585, 5171170, 8790989, 17581978, 43954945, 87909890]

約数ペア:

[(1, 87909890), (2, 43954945), (5, 17581978), (10, 8790989), (17, 5171170), (34, 2585585), (85, 1034234), (170, 517117), (181, 485690), (362, 242845), (905, 97138), (1810, 48569), (2857, 30770), (3077, 28570), (5714, 15385), (6154, 14285)]