66986704

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{220351}}^1$

素因数の和:220378

約数の個数: 20

約数和(自身を含む): 136618240

約数和(自身を除く): 69631536

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 220351, 440702, 881404, 1762808, 3525616, 4186669, 8373338, 16746676, 33493352, 66986704]

約数ペア:

[(1, 66986704), (2, 33493352), (4, 16746676), (8, 8373338), (16, 4186669), (19, 3525616), (38, 1762808), (76, 881404), (152, 440702), (304, 220351)]