66780115

素因数分解:

$5^1\times {\mathrm{71}}^1\times {\mathrm{313}}^1\times {\mathrm{601}}^1$

素因数の和:990

約数の個数: 16

約数和(自身を含む): 81660096

約数和(自身を除く): 14879981

約数列:

[1, 5, 71, 313, 355, 601, 1565, 3005, 22223, 42671, 111115, 188113, 213355, 940565, 13356023, 66780115]

約数ペア:

[(1, 66780115), (5, 13356023), (71, 940565), (313, 213355), (355, 188113), (601, 111115), (1565, 42671), (3005, 22223)]