18120415

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{271}}^1\times {\mathrm{311}}^1$

素因数の和:630

約数の個数: 16

約数和(自身を含む): 22404096

約数和(自身を除く): 4283681

約数列:

[1, 5, 43, 215, 271, 311, 1355, 1555, 11653, 13373, 58265, 66865, 84281, 421405, 3624083, 18120415]

約数ペア:

[(1, 18120415), (5, 3624083), (43, 421405), (215, 84281), (271, 66865), (311, 58265), (1355, 13373), (1555, 11653)]