66985240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{239233}}^1$

素因数の和:239251

約数の個数: 32

約数和(自身を含む): 172248480

約数和(自身を除く): 105263240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 239233, 478466, 956932, 1196165, 1674631, 1913864, 2392330, 3349262, 4784660, 6698524, 8373155, 9569320, 13397048, 16746310, 33492620, 66985240]

約数ペア:

[(1, 66985240), (2, 33492620), (4, 16746310), (5, 13397048), (7, 9569320), (8, 8373155), (10, 6698524), (14, 4784660), (20, 3349262), (28, 2392330), (35, 1913864), (40, 1674631), (56, 1196165), (70, 956932), (140, 478466), (280, 239233)]