78774160

素因数分解:

$2^4\times 5^1\times {\mathrm{439}}^1\times {\mathrm{2243}}^1$

素因数の和:2695

約数の個数: 40

約数和(自身を含む): 183648960

約数和(自身を除く): 104874800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 439, 878, 1756, 2195, 2243, 3512, 4390, 4486, 7024, 8780, 8972, 11215, 17560, 17944, 22430, 35120, 35888, 44860, 89720, 179440, 984677, 1969354, 3938708, 4923385, 7877416, 9846770, 15754832, 19693540, 39387080, 78774160]

約数ペア:

[(1, 78774160), (2, 39387080), (4, 19693540), (5, 15754832), (8, 9846770), (10, 7877416), (16, 4923385), (20, 3938708), (40, 1969354), (80, 984677), (439, 179440), (878, 89720), (1756, 44860), (2195, 35888), (2243, 35120), (3512, 22430), (4390, 17944), (4486, 17560), (7024, 11215), (8780, 8972)]