19821970

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{5779}}^1$

素因数の和:5807

約数の個数: 32

約数和(自身を含む): 41616000

約数和(自身を除く): 21794030

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 343, 490, 686, 1715, 3430, 5779, 11558, 28895, 40453, 57790, 80906, 202265, 283171, 404530, 566342, 1415855, 1982197, 2831710, 3964394, 9910985, 19821970]

約数ペア:

[(1, 19821970), (2, 9910985), (5, 3964394), (7, 2831710), (10, 1982197), (14, 1415855), (35, 566342), (49, 404530), (70, 283171), (98, 202265), (245, 80906), (343, 57790), (490, 40453), (686, 28895), (1715, 11558), (3430, 5779)]