9878890

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{20161}}^1$

素因数の和:20182

約数の個数: 24

約数和(自身を含む): 20686212

約数和(自身を除く): 10807322

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 20161, 40322, 100805, 141127, 201610, 282254, 705635, 987889, 1411270, 1975778, 4939445, 9878890]

約数ペア:

[(1, 9878890), (2, 4939445), (5, 1975778), (7, 1411270), (10, 987889), (14, 705635), (35, 282254), (49, 201610), (70, 141127), (98, 100805), (245, 40322), (490, 20161)]