66709880

素因数分解:

$2^3\times 5^1\times {\mathrm{1667747}}^1$

素因数の和:1667758

約数の個数: 16

約数和(自身を含む): 150097320

約数和(自身を除く): 83387440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1667747, 3335494, 6670988, 8338735, 13341976, 16677470, 33354940, 66709880]

約数ペア:

[(1, 66709880), (2, 33354940), (4, 16677470), (5, 13341976), (8, 8338735), (10, 6670988), (20, 3335494), (40, 1667747)]