390122015

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{991}}^1\times {\mathrm{1831}}^1$

素因数の和:2870

約数の個数: 16

約数和(自身を含む): 479778816

約数和(自身を除く): 89656801

約数列:

[1, 5, 43, 215, 991, 1831, 4955, 9155, 42613, 78733, 213065, 393665, 1814521, 9072605, 78024403, 390122015]

約数ペア:

[(1, 390122015), (5, 78024403), (43, 9072605), (215, 1814521), (991, 393665), (1831, 213065), (4955, 78733), (9155, 42613)]