81591315

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{251}}^1\times {\mathrm{1667}}^1$

素因数の和:1939

約数の個数: 32

約数和(自身を含む): 141232896

約数和(自身を除く): 59641581

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 251, 753, 1255, 1667, 3263, 3765, 5001, 8335, 9789, 16315, 21671, 25005, 48945, 65013, 108355, 325065, 418417, 1255251, 2092085, 5439421, 6276255, 16318263, 27197105, 81591315]

約数ペア:

[(1, 81591315), (3, 27197105), (5, 16318263), (13, 6276255), (15, 5439421), (39, 2092085), (65, 1255251), (195, 418417), (251, 325065), (753, 108355), (1255, 65013), (1667, 48945), (3263, 25005), (3765, 21671), (5001, 16315), (8335, 9789)]