81247967998

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{5351}}^1\times {\mathrm{399571}}^1$

素因数の和:404943

約数の個数: 16

約数和(自身を含む): 128310560640

約数和(自身を除く): 47062592642

約数列:

[1, 2, 19, 38, 5351, 10702, 101669, 203338, 399571, 799142, 7591849, 15183698, 2138104421, 4276208842, 40623983999, 81247967998]

約数ペア:

[(1, 81247967998), (2, 40623983999), (19, 4276208842), (38, 2138104421), (5351, 15183698), (10702, 7591849), (101669, 799142), (203338, 399571)]