81314030

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{165947}}^1$

素因数の和:165968

約数の個数: 24

約数和(自身を含む): 170262648

約数和(自身を除く): 88948618

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 165947, 331894, 829735, 1161629, 1659470, 2323258, 5808145, 8131403, 11616290, 16262806, 40657015, 81314030]

約数ペア:

[(1, 81314030), (2, 40657015), (5, 16262806), (7, 11616290), (10, 8131403), (14, 5808145), (35, 2323258), (49, 1659470), (70, 1161629), (98, 829735), (245, 331894), (490, 165947)]