139425580

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{142271}}^1$

素因数の和:142294

約数の個数: 36

約数和(自身を含む): 340599168

約数和(自身を除く): 201173588

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 142271, 284542, 569084, 711355, 995897, 1422710, 1991794, 2845420, 3983588, 4979485, 6971279, 9958970, 13942558, 19917940, 27885116, 34856395, 69712790, 139425580]

約数ペア:

[(1, 139425580), (2, 69712790), (4, 34856395), (5, 27885116), (7, 19917940), (10, 13942558), (14, 9958970), (20, 6971279), (28, 4979485), (35, 3983588), (49, 2845420), (70, 1991794), (98, 1422710), (140, 995897), (196, 711355), (245, 569084), (490, 284542), (980, 142271)]