1220809985

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{197}}^1\times {\mathrm{53887}}^1$

素因数の和:54112

約数の個数: 16

約数和(自身を含む): 1536454656

約数和(自身を除く): 315644671

約数列:

[1, 5, 23, 115, 197, 985, 4531, 22655, 53887, 269435, 1239401, 6197005, 10615739, 53078695, 244161997, 1220809985]

約数ペア:

[(1, 1220809985), (5, 244161997), (23, 53078695), (115, 10615739), (197, 6197005), (985, 1239401), (4531, 269435), (22655, 53887)]