81256210

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{165829}}^1$

素因数の和:165850

約数の個数: 24

約数和(自身を含む): 170141580

約数和(自身を除く): 88885370

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 165829, 331658, 829145, 1160803, 1658290, 2321606, 5804015, 8125621, 11608030, 16251242, 40628105, 81256210]

約数ペア:

[(1, 81256210), (2, 40628105), (5, 16251242), (7, 11608030), (10, 8125621), (14, 5804015), (35, 2321606), (49, 1658290), (70, 1160803), (98, 829145), (245, 331658), (490, 165829)]