277617680

素因数分解:

$2^4\times 5^1\times {\mathrm{3470221}}^1$

素因数の和:3470234

約数の個数: 20

約数和(自身を含む): 645461292

約数和(自身を除く): 367843612

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 3470221, 6940442, 13880884, 17351105, 27761768, 34702210, 55523536, 69404420, 138808840, 277617680]

約数ペア:

[(1, 277617680), (2, 138808840), (4, 69404420), (5, 55523536), (8, 34702210), (10, 27761768), (16, 17351105), (20, 13880884), (40, 6940442), (80, 3470221)]