1298102405

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{663991}}^1$

素因数の和:664036

約数の個数: 16

約数和(自身を含む): 1721067264

約数和(自身を除く): 422964859

約数列:

[1, 5, 17, 23, 85, 115, 391, 1955, 663991, 3319955, 11287847, 15271793, 56439235, 76358965, 259620481, 1298102405]

約数ペア:

[(1, 1298102405), (5, 259620481), (17, 76358965), (23, 56439235), (85, 15271793), (115, 11287847), (391, 3319955), (1955, 663991)]