1205605405

素因数分解:

$5^1\times {\mathrm{17}}^2\times {\mathrm{43}}^1\times {\mathrm{19403}}^1$

素因数の和:19485

約数の個数: 24

約数和(自身を含む): 1572655392

約数和(自身を除く): 367049987

約数列:

[1, 5, 17, 43, 85, 215, 289, 731, 1445, 3655, 12427, 19403, 62135, 97015, 329851, 834329, 1649255, 4171645, 5607467, 14183593, 28037335, 70917965, 241121081, 1205605405]

約数ペア:

[(1, 1205605405), (5, 241121081), (17, 70917965), (43, 28037335), (85, 14183593), (215, 5607467), (289, 4171645), (731, 1649255), (1445, 834329), (3655, 329851), (12427, 97015), (19403, 62135)]