9780905

素因数分解:

$5^1\times {\mathrm{73}}^1\times {\mathrm{127}}^1\times {\mathrm{211}}^1$

素因数の和:416

約数の個数: 16

約数和(自身を含む): 12048384

約数和(自身を除く): 2267479

約数列:

[1, 5, 73, 127, 211, 365, 635, 1055, 9271, 15403, 26797, 46355, 77015, 133985, 1956181, 9780905]

約数ペア:

[(1, 9780905), (5, 1956181), (73, 133985), (127, 77015), (211, 46355), (365, 26797), (635, 15403), (1055, 9271)]